Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR.
The rate of airflow measured during a FORCED VITAL CAPACITY determination.
A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).
The airflow rate measured during the first liter expired after the first 200 ml have been exhausted during a FORCED VITAL CAPACITY determination. Common abbreviations are MEFR, FEF 200-1200, and FEF 0.2-1.2.
Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity.
A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.
The volume of air that is exhaled by a maximal expiration following a maximal inspiration.
Measurement of the various processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and compliance, etc.
Agents that cause an increase in the expansion of a bronchus or bronchial tubes.
Measurement of volume of air inhaled or exhaled by the lung.
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
An anti-inflammatory, synthetic glucocorticoid. It is used topically as an anti-inflammatory agent and in aerosol form for the treatment of ASTHMA.
A muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.
Analogs and derivatives of atropine.
Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
Any hindrance to the passage of air into and out of the lungs.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
Drugs that are used to treat asthma.
The total volume of gas inspired or expired per unit of time, usually measured in liters per minute.
Asthma attacks following a period of exercise. Usually the induced attack is short-lived and regresses spontaneously. The magnitude of postexertional airway obstruction is strongly influenced by the environment in which exercise is performed (i.e. inhalation of cold air during physical exertion markedly augments the severity of the airway obstruction; conversely, warm humid air blunts or abolishes it).
A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
Curves depicting MAXIMAL EXPIRATORY FLOW RATE, in liters/second, versus lung inflation, in liters or percentage of lung capacity, during a FORCED VITAL CAPACITY determination. Common abbreviation is MEFV.
Any disorder marked by obstruction of conducting airways of the lung. AIRWAY OBSTRUCTION may be acute, chronic, intermittent, or persistent.
A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.
Inflammation of the large airways in the lung including any part of the BRONCHI, from the PRIMARY BRONCHI to the TERTIARY BRONCHI.
A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.
Tests involving inhalation of allergens (nebulized or in dust form), nebulized pharmacologically active solutions (e.g., histamine, methacholine), or control solutions, followed by assessment of respiratory function. These tests are used in the diagnosis of asthma.
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
Diseases of the respiratory system in general or unspecified or for a specific respiratory disease not available.
Unsaturated pregnane derivatives containing two keto groups on side chains or ring structures.
A class of drugs designed to prevent leukotriene synthesis or activity by blocking binding at the receptor level.
A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation. It is a protective response that serves to clear the trachea, bronchi, and/or lungs of irritants and secretions, or to prevent aspiration of foreign materials into the lungs.
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
An adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic.
Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.
Noises, normal and abnormal, heard on auscultation over any part of the RESPIRATORY TRACT.
Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle.
Diseases caused by factors involved in one's employment.
The volume of air contained in the lungs at the end of a maximal inspiration. It is the equivalent to each of the following sums: VITAL CAPACITY plus RESIDUAL VOLUME; INSPIRATORY CAPACITY plus FUNCTIONAL RESIDUAL CAPACITY; TIDAL VOLUME plus INSPIRATORY RESERVE VOLUME plus functional residual capacity; or tidal volume plus inspiratory reserve volume plus EXPIRATORY RESERVE VOLUME plus residual volume.
The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.
Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%.
Drugs that selectively bind to and activate beta-adrenergic receptors.
Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.
Elements of limited time intervals, contributing to particular results or situations.
Disease having a short and relatively severe course.
Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed)
The physical or mechanical action of the LUNGS; DIAPHRAGM; RIBS; and CHEST WALL during respiration. It includes airflow, lung volume, neural and reflex controls, mechanoreceptors, breathing patterns, etc.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.
The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (= OXYGEN CONSUMPTION) or cell respiration (= CELL RESPIRATION).
Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.
A group of CORTICOSTEROIDS that affect carbohydrate metabolism (GLUCONEOGENESIS, liver glycogen deposition, elevation of BLOOD SUGAR), inhibit ADRENOCORTICOTROPIC HORMONE secretion, and possess pronounced anti-inflammatory activity. They also play a role in fat and protein metabolism, maintenance of arterial blood pressure, alteration of the connective tissue response to injury, reduction in the number of circulating lymphocytes, and functioning of the central nervous system.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects.
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)
A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116)
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).
The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.
Difficult or labored breathing.
Therapy with two or more separate preparations given for a combined effect.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
The flow of BLOOD through or around an organ or region of the body.
Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience.
The extra volume of air that can be expired with maximum effort beyond the level reached at the end of a normal, quiet expiration. Common abbreviation is ERV.
Inhaling and exhaling the smoke of burning TOBACCO.
Pathological processes involving any part of the LUNG.
Tendency of the smooth muscle of the tracheobronchial tree to contract more intensely in response to a given stimulus than it does in the response seen in normal individuals. This condition is present in virtually all symptomatic patients with asthma. The most prominent manifestation of this smooth muscle contraction is a decrease in airway caliber that can be readily measured in the pulmonary function laboratory.
Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time.
Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.
AMINO ALCOHOLS containing the ETHANOLAMINE; (-NH2CH2CHOH) group and its derivatives.
The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T.
The maximum volume of air that can be inspired after reaching the end of a normal, quiet expiration. It is the sum of the TIDAL VOLUME and the INSPIRATORY RESERVE VOLUME. Common abbreviation is IC.
Compressed gases or vapors in a container which, upon release of pressure and expansion through a valve, carry another substance from the container. They are used for cosmetics, household cleaners, and so on. Examples are BUTANES; CARBON DIOXIDE; FLUOROCARBONS; NITROGEN; and PROPANE. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.
Derivatives of the steroid androstane having two double bonds at any site in any of the rings.
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.

Respiratory symptoms among glass bottle workers--cough and airways irritancy syndrome? (1/1037)

Glass bottle workers have been shown to experience an excess of respiratory symptoms. This work describes in detail the symptoms reported by a cohort of 69 symptomatic glass bottle workers. Symptoms, employment history and clinical investigations including radiology, spirometry and serial peak expiratory flow rate records were retrospectively analyzed from clinical records. The results showed a consistent syndrome of work-related eye, nose and throat irritation followed after a variable period by shortness of breath. The latent interval between starting work and first developing symptoms was typically 4 years (median = 4 yrs; range = 0-28). The interval preceding the development of dysponea was longer and much more variable (median = 16 yrs; range = 3-40). Spirometry was not markedly abnormal in the group but 57% of workers had abnormal serial peak expiratory flow rate charts. Workers in this industry experience upper and lower respiratory tract symptoms consistent with irritant exposure. The long-term functional significance of these symptoms should be formally investigated.  (+info)

Fine particulate air pollution, resuspended road dust and respiratory health among symptomatic children. (2/1037)

The short-term association of particulate air pollution with peak expiratory flow rate (PEF) and respiratory symptoms was examined. Forty-nine children with chronic respiratory symptoms aged 8-13 yrs were followed daily for six weeks in spring, 1995, in Kuopio, Finland. Daily concentrations of particulate material with a 50% cut-off aerodynamic diameter < or = 10 microm and < or = 2.5 microm (PM10 and PM2.5, respectively), black carbon, and the number concentrations of particles from 0.01-10 microm diameter were measured. During the study period, PM10 were mainly resuspended soil and street dust, and the concentration was estimated using aluminum content of PM10 samples. No consistent effect of particles was found as the associations varied by lag. Of the lags examined, only 1-day lagged PM2.5 was statistically significantly associated with morning PEF (beta=-1.06, SE=0.52 (per interquartile increase in pollutant)). Evening PEF was significantly associated with the 1-day lagged number of particles in the size range 0.1-1.0 microm (beta=-1.56, SE=0.72). One-day lagged PM10, PM2.5-10, PM2.5 and resuspended PM10, and 4-day average of PM2.5 were significantly associated with increased risk of cough. Given the short duration of the study, separating the effects of different types of particles was difficult. The present study demonstrates the highly variable size and number distribution and chemical composition of particles in Finland, and underlines the importance of measuring the size and chemical composition of particles to determine which types of particles are associated with health effects.  (+info)

Airway inflammatory response to ozone in subjects with different asthma severity. (3/1037)

The aim of this study was to evaluate whether ozone exposure induces a similar airway inflammatory response in subjects with different degrees of asthma severity. Two groups of asthmatic subjects were studied: seven with intermittent mild asthma not requiring regular treatment (group A); and seven with persistent mild asthma requiring regular treatment with inhaled corticosteroids and long-acting beta2-agonists (group B). All subjects were exposed, in a randomized cross-over design, to air or O3 (0.26 parts per million (ppm) for 2 h with intermittent exercise); subjects in group B withdrew from regular treatment 72 h before each exposure. Before the exposure, and 1 and 2 h after the beginning of the exposure they performed a pulmonary function test, and a questionnaire was completed to obtain a total symptom score (TSS). Six hours after the end of the exposure, hypertonic saline (HS) sputum induction was conducted. Sputum cell percentages, eosinophil cationic protein (ECP) and interleukin (IL)-8 concentrations in the sputum supernatant were measured. TSS significantly increased and forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) significantly decreased after O3 exposure in comparison with air exposure in group A, whereas no changes were observed in group B except for a significant decrement of FEV1 2 h after the beginning of O3 exposure. Sputum neutrophil percentage was significantly higher after O3 exposure than after air exposure in both groups (Group A: 70.2% (28-87) versus 26.6% (8.6-73.2); Group B: 62.1% (25-82.4) versus 27.9% (14.4-54)). IL-8 was higher in sputum supernatant collected 6 h after O3 exposure than after air, only in group A. No change due to O3 has been found in sputum eosinophil percentage and ECP concentration in both groups. In conclusion, the degree of airway response to a short-term exposure to ozone is different in subjects with asthma of different severity. The available data do not allow elucidation of whether this difference depends on the severity of the disease or on the regular anti-inflammatory treatment.  (+info)

As-required versus regular nebulized salbutamol for the treatment of acute severe asthma. (4/1037)

Current British guidelines for the administration of beta2-agonists in acute severe asthma recommend regular nebulized therapy in hospitalized patients, followed by as-required (p.r.n.) use via hand-held devices after discharge. Since beta2-agonists do not possess anti-inflammatory activity in vivo, and are thus unlikely to influence the rate of recovery from an asthma exacerbation, it was hypothesized that patients given the short-acting beta2-agonist salbutamol on an as-required basis after admission to hospital would recover as quickly as those on regular treatment, but with potential reductions in the total dose delivered. Forty-six patients with acute severe asthma were randomly assigned to either regular prescriptions of nebulized salbutamol or to usage on a p.r.n. basis, from 24 h after hospital admission. The primary outcome measures were length of hospital stay, time to recovery, and frequency of salbutamol nebulization from 24 h after admission to discharge. Secondary outcome measures were treatment side-effects (tremor, palpitations), and patient satisfaction. Length of hospital stay was reduced in those patients allocated to p.r.n. salbutamol (geometric mean (GM) 3.7 days) versus regular salbutamol (GM 4.7 days). Time taken for peak expiratory flow to reach 75% of recent best was the same in both groups. There was a highly significant reduction in the number of times nebulized therapy was delivered to the p.r.n. group (GM 7.0, range 1-30) compared with the regular treatment group (GM 14.0, range 4-57; p=0.003; 95% confidence interval for ratio of GMs 1.29-3.09). In addition, patients reported less tremor (p=0.062) and fewer palpitations (p=0.049) in the p.r.n. group. Of the patients in the p.r.n. group who had received regular nebulized therapy on previous admissions (n=12), all preferred the p.r.n. regimen. Prescribing beta2-agonists on a p.r.n. basis from 24 h after hospital admission is associated with reduced amount of drug delivered, incidence of side-effects, and possibly length of hospital stay. This has implications for the efficient use of healthcare resources.  (+info)

Acute saline infusion reduces alveolar-capillary membrane conductance and increases airflow obstruction in patients with left ventricular dysfunction. (5/1037)

BACKGROUND: Impaired alveolar-capillary membrane conductance is the major cause for the reduction in pulmonary diffusing capacity for carbon monoxide (DLCO) in heart failure. Whether this reduction is fixed, reflecting pulmonary microvascular damage, or is variable is unknown. The aim of this study was to assess whether DLCO and its subdivisions, alveolar-capillary membrane conductance (DM) and pulmonary capillary blood volume (Vc), were sensitive to changes in intravascular volume. In addition, we examined the effects of volume loading on airflow rates. METHODS AND RESULTS: Ten patients with left ventricular dysfunction (LVD) and 8 healthy volunteers were studied. DM and Vc were determined by the Roughton and Forster method. The forced expiratory volume in 1 second (FEV1), vital capacity, and peak expiratory flow rates (PEFR) were also recorded. In patients with LVD, infusion of 10 mL. kg-1 body wt of 0.9% saline acutely reduced DM (12.0+/-3.3 versus 10.4+/-3.5 mmol. min-1. kPa-1, P<0.005), FEV1 (2.3+/-0.4 versus 2.1+/-0.4 L, P<0.0005), and PEFR (446+/-55 versus 414+/-56 L. min-1, P<0.005). All pulmonary function tests had returned to baseline values 24 hours later. In normal subjects, saline infusion had no measurable effect on lung function. CONCLUSIONS: Acute intravascular volume expansion impairs alveolar-capillary membrane function and increases airflow obstruction in patients with LVD but not in normal subjects. Thus, the abnormalities of pulmonary diffusion in heart failure, which were believed to be fixed, also have a variable component that could be amenable to therapeutic intervention.  (+info)

Exhaled nitric oxide; relationship to clinicophysiological markers of asthma severity. (6/1037)

Bronchial asthma is an airway disorder associated with bronchial hyperresponsiveness, variable airflow obstruction and elevated levels of nitric oxide (NO) in exhaled air. The variables all reflect, in part, the underlying airway inflammation in this disease. To understand their interrelationships we have investigated the relationship between exhaled NO levels and clinicophysiological markers of asthma severity. Twenty-six steroid naive atopic asthmatics participated in the analysis. All were given diary cards and were asked to record their peak expiratory flow (PEF) rates twice daily together with their asthma symptom scores and beta-agonist use. Diary cards were collected 2 weeks later and measurements of exhaled NO levels, FEV1 and histamine bronchial hyperreactivity (PC20 histamine) were undertaken. Exhaled NO levels were significantly higher in our study population than in normal control subjects and correlated negatively with PC20 histamine (r = -0.51; P = 0.008) and positively with PEF diurnal variability (r = 0.58; P = 0.002), but not with symptom scores, beta-agonist use of FEV1 (%). We conclude that a significant relationship exists between exhaled NO levels and the two characteristic features and markers of asthma severity, namely bronchial hyperreactivity and PEF diurnal variability. The lack of correlation between symptom score and beta-agonist use, of FEV1 (%) predicted and exhaled NO suggests that these measures are reflective of differing aspects of asthma.  (+info)

Time course of respiratory decompensation in chronic obstructive pulmonary disease: a prospective, double-blind study of peak flow changes prior to emergency department visits. (7/1037)

The aim of this study was to look at changes in peak expiratory flow rates (PEFR) prior to emergency department visits for decompensated chronic obstructive pulmonary disease (COPD). It was designed as a prospective, double-blind study at the Albuquerque Veterans Affairs Medical Center. Twelve patients with an irreversible component of airflow obstruction on pulmonary function tests were assessed. At entry, all subjects were instructed in the use of a mini-Wright peak flow meter with electronic data storage. They then entered a 6-month monitoring phase in which they recorded PEFR twice daily, before and after bronchodilators. The meter displays were disabled so that the patients and their physicians were blinded to all values. Medical care was provided in the customary manner. Patients were considered to have respiratory decompensation if they required treatment for airflow obstruction in the Emergency Department (ED) and no other causes of dyspnea could be identified. Simple linear regression was used to model changes in PEFR over time. The 12 subjects had 22 episodes of respiratory decompensation during 1741 patient-days of observation. Two episodes could not be analysed because of missing values. Ten episodes in seven subjects were characterized by a significant linear decline in at least one peak flow parameter prior to presentation. The mean rates of change for the four daily parameters varied from 0.22% to 0.27% predicted per day (or 1.19 to 1.44 1 min-1 day-1). The average decrement in these parameters ranged from 30.0 to 33.8 1 min-1 (or 18.6%-25.9% of their baseline values). No temporal trends were found for the 10 episodes occurring in the other five subjects. We concluded that respiratory decompensation is characterized by a gradual decline in PEFR in about half of cases. Future studies should be done to elucidate the mechanisms of respiratory distress in the other cases.  (+info)

A comparative study of the effects of ketotifen, disodium cromoglycate, and beclomethasone dipropionate on bronchial mucosa and asthma symptoms in patients with atopic asthma. (8/1037)

Asthma is a chronic inflammatory disorder of the airways that is characterized by infiltration of many inflammatory cells into the bronchial mucosa. We compared the effects of ketotifen, disodium cromoglycate (DSCG), and beclomethasone dipropionate (BDP) on inflammatory cells in the bronchial mucosa and on the asthma symptoms of patients with atopic asthma. In this 12-week parallel study, 32 patients were randomly allocated to either the ketotifen group (2 mg day-1, n = 13), DSCG group (8 mg day-1, n = 9) or BDP (400 micrograms day-1, n = 10). Each subject recorded daily asthma symptoms and peak expiratory flow (PEF). Before and after treatment, pulmonary function and bronchial responsiveness to methacholine were evaluated, and fibreoptic bronchoscopy and biopsy were performed before and after treatment. Biopsy specimens were obtained by bronchoscopy. We performed immunohistochemistry using specific monoclonal antibodies for activated eosinophils (EG2), mast cells (AA1), and T cells (CD3, CD4, and CD8). Our clinical findings showed significant improvement in symptom score and bronchial responsiveness (P < 0.01) each) in all groups. Both the DSCG and the BDP groups had significantly better symptom scores than the ketotifen group (P < 0.05, both groups). PEF significantly increased in the DSCG group in comparison to the ketotifen (P < 0.01) and BDP (P < 0.05) groups, FEV1% increased significantly in the DSCG (P < 0.01) and BDP (P < 0.05) groups in comparison to the ketotifen group. Compared with their baseline values, treatment significantly decreased EG2+ activated eosinophils, and CD3+ and CD4+ T cells, in each group (P < 0.01). Both the DSCG (P < 0.05) and the BDP groups (P < 0.01) exhibited significant decreases in AA1+ mast cell count, but this was not observed in the ketotifen group. Comparing before- and after-treatment values, only the DSCG group exhibited a significant decrease in the number of CD8+ T cells (P < 0.01). Ketotifen, DSCG, and BDP all showed anti-inflammatory activity as determined by examination of the bronchial mucosa of asthmatic patients; and both the DSCG and BDP groups had better clinical responses than the ketotifen group.  (+info)

Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil Nadu, India
Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil Nadu, India
We investigated the effects of shift work on Peak Expiratory Flow (PEF) measurements used for diagnosing occupational asthma (OA). In a clinic database of workers investigated for OA, 123 workers with OA and 69 workers without OA had PEF records containing ,1 shift pattern with ≥4 days on each shift. The OA definition was based on Oasys-2 score ,2.51 and the non-OA on an alternative clinical diagnosis and Oasys-2 score ,2.51. Records not fulfilling the minimum data quantity for the Area Between Curves (ABC) PEF score, or containing respiratory infections, changes in asthma treatment or different exposures on each shift were excluded. The mean ABC score, mean PEF diurnal variation (DV) on workdays and cross-shift PEF changes were calculated for each shift. The ABC score of the OA workers was lower on nights (p=0.028) and afternoons (p=0.020) compared to day shifts, without significant differences in diurnal variation. There was statistically significant difference between day and night shift ...
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Asthma Check Peak Flow Meter Readings Chart For Adults Lung Asthma Flow Meter Chart Flowcharts asthma flow meter readings asthma flow meter chart printable asthma peak flow meter chart asthma check peak flow meter readings asthma peak flow meter readings adults One more free flowchart maker for Mac thats worth your time is Draw.io. You can use the application online or download it to your Mac. This tool also offers a crisp interface thats similar to applications youre familiar with using a simple menu at the top and helpful sidebars. Find Your Next Flowcharts
The original authors main conclusions are taken from Abstract, Results and Discussion. They are decided upon by the authors of the BOHRF occupational asthma guidelines and form part of the guidelines.. Objective criteria for interpretation of peak expiratory flow rate readings were assessed in 50 patients evaluated for suspected occupational asthma who had at least two weeks of PEFR readings and an objective diagnosis based on other investigations. The prevalence of occupational asthma was 36 percent. Peak flows were interpreted by two observers blinded to other results. Criteria for a PEFR interpretation of occupational asthma were as follow: diurnal variation greater than or equal to 20 percent relatively more frequently or with greater variation on working days than days off work. With the objective diagnoses as the gold standard, the sensitivity of the PEFR interpretations was 72 percent for OA; specificity for no asthma was 53 percent. Excluding those with greater than or equal to 20 ...
How to Use a Peak Flow Meter Peak flow meters measure how fast you can blow air from your lungs. Peak flow meters give you a reading or score (peak expiratory flow rate, also called PEFR or PEF). Your peak flow scores can help you and your doctor see if your asthma symptoms are getting better or worse.
A peak flow meter is described with a body having a sample channel and at least one bypass channel. One of at least two flow range scales may be selected using a flow range selector to adjust the sensitivity of the peak flow meter. A flow range selection indicator provides visual reference as to which flow range scale has been selected. A peak flow calculator used in cooperation with zone indicators on the peak flow meter permits a user to customize the peak flow meter for that users predicted personal best exhalation range.
authors reply Dr Greggs remarks on our paper concern four major points: (1) the differences between the Micro medical spirometer and the mini-Wright peak flow meter; (2) the choice of predicted values; (3) the dissimilar manner in which changes in PEF were compared with changes in FEV1; and (4) the use of changes in FEV1 rather than changes in the FEV1/FVC ratio.. (1) It is true that there are differences between the two devices based upon the different principles-turbine flow measurement and variable orifice peak flow measurement. As we stated in the discussion part of the paper, the turbine flow meter yields slightly lower values than a pneumotachograph1-1 1-2 and the variable orifice peak flow meter shows significantly higher values (200-300 l/min) than a pneumotachograph in the mid region.1-3 In both cases the pneumotachograph value is considered the reference value. Without pertaining to the brand of the portable spirometer used, it appears that the turbine values generally meet the ...
Inadequate Peak Expiratory Flow Meter Characteristics Detected By Predicted Average Chart Predicted Average Peak Expiratory Flow Chart Flowcharts predicted average peak expiratory flow chart Start event symbol signals the first step of a process. Process is a series of actions or steps taken in order to achieve a particular end. Decision is the action or process of deciding something or of resolving a question. End event symbol stands for the result of a process. Find Your Next Flowcharts
Pocket Peak Peak Flow Meter The Pocket Peak peak flow meter is a simple, portable, convenient device that measures air flow or, peak expiratory flow rate (
TY - JOUR. T1 - Influence of expiratory flow on closing capacity at low expiratory flow rates. AU - Rodarte, J. R.. AU - Hyatt, R. E.. AU - Cortese, D. A.. PY - 1975/1/1. Y1 - 1975/1/1. N2 - Single breath oxygen (SBO2) tests at expiratory flow rates of 0.2, 0.5, and 1.01/s were performed by 10 normal subjects in a body plethysmograph. Closing capacity (CC) the absolute lung volume at which phase IV began increased significantly with increases in flow. Five subjects were restudied with a 200 ml bolus of 100% N2 inspired from residual volume after N2 washout by breathing 100% O2 and similar results were obtained. An additional five subjects performed SBO2 tests in the standing, supine and prone positions; closing volume (CV), the lung volume above residual volume at which phase IV began, also increased with increases of expiratory flow. The observed increase in CG with increasing flow did not appear to result from dependent lung regions reaching some critical closing volume at a higher overall ...
Product Request - Assess Peak Flow Meter Measure airway obstruction easily, accurately, and cost-effectively. Peak expiratory flow rate (PEFR) provides an
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Two of my friends, one chaet them a naturopath had recommended that I try your program. Disclaimer: This article is for https://extrinsicasthma.com/claritin-loratadine-10mg-dosage.html only and should not go here used for the diagnosis or treatment of medical conditions. Heres how to find out your childs personal best peak flow number: Use the same peak flow meter for each reading. A peak flow chart allows asthm doctor read article the person with asthma to recognise the pattern of that persons asthma and see how it changes over time. Ask your child to blow out as hard and as fast as they can. Thank you very much for everything you have done for me! Asthma: Using a peak flow meter By SickKids staff. You need to know how to use a peak flow meter. The chart and instructions have been extensively pilot-tested, and are in use around Australia and in the UK. Peak Flow Meters A portable device that can help measure air flow in and out of the lungs May not be useful for children under the age of 5 ...
Children who present to the emergency department during a severe exacerbation of asthma are typically treated with inhaled beta agonists and corticosteroids. Despite optimal use of these agents, many children require hospital admission for continued treatment. Several studies have shown that pulmonary function improves when the anticholinergic agent ipratropium bromide is given with a beta agonist, such as albuterol. Qureshi and colleagues conducted a randomized, double-blind, placebo-controlled trial to evaluate whether the addition of inhaled ipratropium decreased hospitalization rates in children who presented to the emergency department with an acute episode of asthma.. Children between the ages of two and 18 years who presented to the emergency department with an acute episode of asthma were eligible for the study. The severity of the asthma at presentation was classified according to the predicted peak expiratory flow rate. A peak expiratory flow rate of more than 70 percent was classified ...
Prognosis of Patients with Idiopathic Pulmonary Fibrosis Admitted to the Intensive Care Unit 原發性肺纖維化患者於加護病房之預後探討 簡榮彥(Jung-Yien Chien) ; 鄭之勛(Jih-Shuin Jerng) ; 余忠仁(Chong-Jen Yu) ; 楊泮池(Pan-Chyr Yang) 肺纖維化 ; 呼吸衰竭 ; 呼吸器治療 ; pulmonary fibrosis ; respiratory failure ; mechanical ventilation Heliox-Driven Albuterol Therapy in Severe Persistent Asthma with Acute Exacerbation 氦氧混合氧驅動下對重度氣喘急性發作病患使用支氣管擴張劑化霧治療時的影響 李琳(David Lin Lee) ; 姜霟霆(H-T Chiang) ; 張雅雯(Alice Y-W Chang) ; 張學文(Hsueh-Wen Chang) ; 黃裕欽(Yuh-Chin T. Huang) 氦氣 ; 氣喘 ; 最大吐氣流量 ; 急促指數 ; 第一秒最大吐氣量 ; Helium ; bronchial asthma ; peak expiratory flow rate ; dyspnea score ; forced expiratory volume in 1st second Mediastinal Cystic Lymphangioma-A Case Report and Literature Review
My Peak Flow tracks and charts readings from peak flow meters and asthma symptoms. Print a comprehensive report for your doctor. Providing your doctor with more information can result in better asthma management. Designed to be used by people with asthma, or carers of one or more children who suffer from asthma. ...
Buy JSB N02 Peak Flow Meter online from supermedicare.in. Best price, offers and deals for Cpap, Bipap and Oxygen Concentrator in India. It is a breathing aid used to provide an objective measurement of your Peak Expiratory Flow.
The most accurate test is a spirometry (hand-held electronic device measuring lung function) performed before and after the specific exercise the subject is doing. Since many doctors do not have spirometers in their office, this is not a common test. However, most allergists do have these machines. The test is commonly used by U.S. Olympic Committee sports physiologists to screen athletes for EIB.. Another test that can be done is a peak flow rate, which can be done with an inexpensive hand-held device, to measure the peak expiratory flow rate of the lungs before and after exercise. However, this is not as accurate as a spirometer. In case there is no spirometer or peak flow meter available, the physician may prescribe a treatment (inhaler) for EIB. If that treatment is effective, it usually confirms the diagnosis.. What are the treatments for EIB ...
Numed Healthcare offer a comprehensive range of spirometer mouthpieces and bacterial filters from top brands such as Carefusion (Micro Medical) and NDD. The mouthpieces are suitable for use with all leading brands of spirometers and peak flow meters. Prices start from only £9.99.
Background: Peak flow meter (PFM) is a screening tool for asthma and COPD. The ability of PFM to detect airway obstruction compared to standard spirometer is inadequately studied.. Methods: PEF measurement (Breathometer, Cipla ltd.) and spirometry (Koko) were conducted in 111 subjects (asthma=69, COPD=18, healthy=24) by a well trained technician. Sensitivity and specificity of peak flow meter to detect airway obstruction were studied against spirometry and final clinical diagnosis and cut-off for %predicted was obtained by receiver operating characteristic analysis.. Results: Compared to standard spirometry, PFM had sensitivities of 91% and 75% and specificities of 77% and 91% at cut-offs of 80% predicted and 75% predicted respectively to detect airflow limitation. For predicting confirmed clinical diagnosis of healthy and airway obstruction (asthma/COPD) sensitivity and specificity of standard spirometry and PFM were 83% and 70%; and 80% and 85% with cut-offs of 0.7 and 50% predicted ...
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs.
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs.
Peak Flow Meters / Accessories | Respiratory Care | Southwestmedical.com specializes in medical supplies (equipment/products): patient lifts, standing frames, easystand, wheelchair parts & cushions, bathroom lifts and more for the disabled.
Phillips is one of the most trusted brands in pakistan with its several appliances making our household livlier! Check out this super-cool Peak Flow Meter which now is available with an official warranty!
This device is used to measure Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) in both children and adults. PEF is the fastest speed air can be blown out of the lungs after inhalation. FEV1 measures the volume after exhaling in 1-second. Peak Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) measurements can tell how well lungs are breathing by monitoring airflow. Doctors can have patients monitor changes in airflow and record the results. The automatic memory stores and provides easy access to the last 240 readings along with the time and date.. Enter your model numberto make sure this fits ...
This device is used to measure Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) in both children and adults. PEF is the fastest speed air can be blown out of the lungs after inhalation. FEV1 measures the volume after exhaling in 1-second. Peak Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) measurements can tell how well lungs are breathing by monitoring airflow. Doctors can have patients monitor changes in airflow and record the results. The automatic memory stores and provides easy access to the last 240 readings along with the time and date.. ...
Peak expiratory flow less than 50% of your personal best peak flow measurement. To find 50% of your personal best, multiply your personal best measurement by 0.50. For example, if your personal best flow is 400, then 50% of that is 400 times 0.50, which is 200. In this example, a peak expiratory flow less than 200 means you are in the red zone ...
Its very common for teens to be in denial about having asthma, and they may stop taking medicines, which can lead to more symptoms and flare-ups. If this happens, you may need to monitor your teens care until he or she is ready to do it alone. Some parents find it helpful to use a peak flow meter (a handheld tool that can be used at home to measure breathing ability) as the final word on whether (and how much) medicine is needed to prevent a flare-up. When peak flow readings drop, its a sign of increasing airway inflammation. The peak flow meter can detect subtle airway inflammation and obstruction, even when someone feels fine. In some cases, it can detect drops in peak flow readings 2 to 3 days before a flare-up occurs, providing plenty of time to treat and prevent it.. Peak flow meters dont lie, so teens cant deny theyre having a problem - and parents are less likely to be seen as bad guys or overprotective, forcing their kids to take medication unnecessarily ...
Peak Flow Meter A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your personal best, and how to set your peak flow zones. ...
Subjects measured peak expiratory flow rate (PEFR) and forced expiratory volume in 1 second (FEV1) twice daily and entered the results in an electronic diary. Daily data were used to calculate the mean PEFR and FEV1 for each week (observed weekly mean and change from baseline in weekly mean). For each subject, the mean weekly morning (and evening) PEFR and FEV1 was defined as the sum of the daily morning (and evening) PEFR (and FEV1) measurements during the week divided by the number of non-missing PEFR (and FEV1) measurements during the week ...
Follow these steps to use your peak flow meter:Set the pointer on the gauge of the peak flow meter to 0 (zero).Attach the mouthpiece to the peak flow meter.Stand up to allow yourself to take a deep breath. … Take a deep breath in. … Breathe out as hard and as fast as you can using a huff. … Note the value on the gauge.More items… ...
Asthma symptoms can be monitored by closely watching for early changes or by using a peak flow meter. A peak flow meter is a tool for testing how well your childs lungs are working. It can help warn you of a flare-up, even before there are symptoms. Make sure you know when you and your child should check his or her peak flow. And make sure that you and your child know how to use the meter correctly.
Abstract: ß-Agonists, administered by metered-dose inhaleror nebulizer, are still the mainstay of therapy for asthma exacerbations.A trial of a subcutaneous ß-agonist should beconsidered in patients who fail to respond to inhaled medications.Levalbuterol may play a role in managing refractoryasthma, particularly in patients with ischemic heart disease orsevere tachycardia. Systemic corticosteroids should be administeredto all patients presenting to the hospital withasthma unless their peak expiratory flow rate (PEFR) orforced expiratory volume in 1 second (FEV1) is at least 80% ofpredicted after 1 hour of treatment; this therapy should be institutedwithin 1 hour of presentation. For patients with severeobstruction, the combined use of an anticholinergic and aß-agonist improves PEFR and FEV1 more than ß-agonistsalone and significantly decreases the risk of hospital admission.(J Respir Dis. 2005;26(6):238-249)
191 patients 16 to 60 years of age who were treated in the ED for acute asthma and had a peak expiratory flow rate , 80% predicted for sex, age, and height. Patients were excluded if they had received oral or inhaled corticosteroids during the previous week. Follow-up was 94 ...
All piping children become not asthma in adulthood, but sometimes the asthma persists. In this case, better to heal properly, to live as comfortably as…Read more » ...
Severe exacerbation: needed hospitalization/emergency unit visit. Moderate exacerbation: Needed oral cortico-steroid or adding inhaled Flixotide to maintenance study medicine; decrease in morning or evening peak expiratory flow (PEF) , 30% during ≥ 2 following days from Baseline (Day 0). Mild exacerbation: any night symptoms ≥ 3 consecutive, or night symptoms ≥ 2 consecutive nights in case symptoms have been scored ≥ 2 during at least one night, Day symptoms scored ≥ 2 during ≥ 4 following days, or Day symptoms scored ≥ 3 during ≥ 3 following days, or Day symptoms scored ≥ 4 during ≥ 2 following days, or rescue medication use ≥ 2 occasions per day for ≥ 4 following days, or rescue medication use ≥ 3 occasions per day for ≥ 3 following days, or rescue medication use ≥ 4 occasions per day for ≥ 2 following days, or decrease in morning/evening PEF ,20% during ≥ 2 following days from Baseline (Day 0). Number of total exacerbations and severe, moderate and mild ...
Immunologic responses to inhaled egg protein in egg processing workers was studied. The subjects were 25 workers from a factory that processed eggs into powdered egg yolk or whole egg and liquid egg white. Procedures included an interview with a physician, physical examination, skin tests, measurement of peak expiratory flow rate (PEFR), and serologic testing. Asthmatic illness was classified in a
The aim of this study was to evaluate the cumulative effect of traffic related pollutants on subjects which mainly included traffic police. This evaluation is important to cater to the statistic that occupational asthma is the most common form of lung disease in the world which places the population with high exposure at great risk. We qualify the effect of exposure to pollutants like carbon monoxide, particulate diesel and other gaseous pollutant which can cause interminable harm that demonstrate as migraine, hazy vision, trouble in focus and confusion. They may also be carcinogenic with higher rates of malignancy. The predominance of respiratory complications among the policemen in highly polluted areas is higher than their counterparts. A careful assessment of history and quantification of severity markers and peak expiratory flow rate helps us identify patients who may require intensive immediate care or even hospitalization. The main objective of this work is to analyze the present health ...
Noninvasive positive pressure ventilation (NIPPV) delivered by a nasal or face mask is increasingly being used in the management of patients with acute respiratory failure. Total 45 patients (29 males, 16 females) with mean age 68.32 years (range 29 to 82 years) having acute onset hypoxemic and/or hypercapnic respiratory failure managed with NIPPV in a tertiary care center of Armed Forces were studied. Patients with hemodynamic instability, coma and uncooperative patients were excluded from study. Etiology of Acute Respiratory Failure was acute exacerbations of COPD in 29 patients, ARDS-4 patients, severe kyphoscoliosis-2 patients, ILD-4 patients, lung contusion with pneumonia - 1 patient thoracoplasty - 1 patient and difficult weaning in 4 patients. Initial resting arterial blood gases showed mean PaO2 of 61 mmHg (Range 45 to 78 mmHg) mean PaCO2 -75.2 mmHg (range 32 to 127 mmHg) and mean PH-7.26 (range 7.03 to 7.45). Mean IPAP pressure was 14 cmH2O (Range 10 to 20 cmH2O). Mean EPAP was 5.8 ...
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A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your personal best, and how to set your peak flow zones....more ...
Centers for Disease Control and Prevention (CDC) - National Center of Environmental Health (NCEH) - National Asthma Control Program
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The dry air in overheated rooms irritates the respiratory system and dries out the mucous membranes. To combat this, protect your health with the correct level of humidity. The humidifier Ultrabreeze starts pre-heating as soon as you turn it on. This acts to destroy germs and bacteria. This function is used to protect your dry mucous membranes. Micro fine nebulization through Ultrasound technology to improve the breathable air. Low-noise and energy-saving Timer for programming the duration of atomisation Additional night light Integrated clock with alarm function Oper... €109.95 Ex Tax: €89.39 ...
Merck & Co., Inc., Kenilworth, NJ, USA is a global healthcare leader working to help the world be well. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world. The Merck Manual was first published in 1899 as a service to the community. The legacy of this great resource continues as the Merck Manual in the US and Canada and the MSD Manual outside of North America. Learn more about our commitment to Global Medical Knowledge.. ...
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In the evaluation and management of bronchial asthma, simple instruments for measurements of the peak expiratory flow (PEF) rate are needed. The aim of this study was to determine normal PEF values of Turkish children living in Istanbul. This is the largest study conducted in Turkey. In a cross-sectional study, we measured PEF in 2791 healthy schoolchildren (1468 boys and 1323 girls) aged 7-14 years, with a Mini Wright peak flow meter. We entered height, age, and sex into the regression equation. The equation for prediction of PEF in boys was calculated as (3.5 × height [cm]) + (9.2 × age [years]) - 256.5, (p < 0.0001; r = 0.83) and for girls as (3.3 × height [cm]) + (10.2 × age [years]) - 263.7 (p < 0.0001; r = 0.81). We found that PEF values of Turkish children were similar to British and Danish children, but significant differences were noted with Greek, Irish, Mexican American, African-American, and white American children. Our results were significantly lower compared with another study ...
In the paper entitled Acute effects of winter air pollution on respiratory function in schoolchildren in southern England by Peacock et al in this issue,1 the authors extended their earlier investigation of the effects of summertime air pollutant exposure in children from the same area in southern England.2. In their previous study of summertime exposures, the authors reported very small, but statistically significant negative associations between the mass concentration of PM less than 10 μm in aerodynamic diameter (PM10), and forced expiratory volume in 0.75 seconds (FEV0.75) and forced vital capacity (FVC), but no evident associations with ozone (O3) or nitrogen dioxide (NO2). For the wintertime study described in this issue, they relied on peak expiratory flow rate (PEFR) measured with mini-Wright meters provided for each child rather than on FEV0.75 and FVC measured by spirometry, and reported no clear PEFR associations with any of the measured air pollutants (PM10, NO2, O3, SO2, and ...
Twenty children have been treated with the steroid aerosol beclomethasone, half of them in an open trial and the other half in a controlled cross-over trial. Children were assessed by means of clinical examination, diary records, and twice-daily peak flow rate measurements made at home.. After 1 to 2 months all but 1 of the 16 children who were initially taking systemic steroids or corticotrophin were weaned off these drugs. The cross-over trial showed a significant improvement on the active drug, in terms of diary score, bronchodilator use, steroid dose, and twice-daily peak expiratory flow measurements. Adrenal function was entirely normal after 1 and 3 months on the drug as measured by morning cortisol levels and the response to tetracosactrin. There were no side effects, apart from the reappearance of hay fever or eczema in some children previously on systemic steroids. Follow-up for a mean of 4·5 ± 2·2 (SD) months showed the continuing efficacy of beclomethasone, though an increase in ...
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Ventilator-induced lung injury (VILI) exacerbates acute lung injury by causing additional atelectrauma and volutrauma at the microanatomical level. Kollisch-Singule and colleagues designed a randomized, nonblinded laboratory animal study to investigate alveolar microstrain of subpleural alveoli during dynamic inflation and deflation. The authors hypothesized that airway pressure release ventilation (APRV), with a prolonged plateau pressure (Phigh) and minimal time at end-expiratory release pressure (Plow), would minimize microstrain.. The authors found that an APRV termination of peak expiratory flow rate to peak expiratory flow rate ratio of 75% resulted in significantly less alveolar microstrain and improved alveolar recruitment. The methodology established in this study will likely prove useful in future large animal and clinical studies designed to investigate the optimal mechanical breath profiles for the prevention of VILI.. Read the full Concise Critical Appraisal by logging into the SCCM ...
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A peak flow meter for asthma is a handheld meter that measures how well air flows out of the lungs. Measuring your peak flow using this device is an important part of managing your asthma symptoms and preventing an asthma attack. That is because sometimes you may feel your breathing is fine, but when you measure it with a peak flow meter, you find your lung function is slightly decreased. A PFM can be used to:. • Determine the severity of your asthma. • Check your response to treatment during an acute asthma episode. • Monitor progress in treatment of chronic asthma and provide information for any changes in your therapy. • Detect worsening lung function and avoid a possible serious asthma flare-up. A peak flow meter can help you and your allergist evaluate how severe your asthma is at any point in time. With a peak flow meter, you can often see a drop in your readings even before your symptoms (like coughing or wheezing) get worse. Decreases in peak flow may show that you need to ...
Brittle asthma is a type of asthma distinguishable from other forms by recurrent, severe attacks. There are two subtypes divided by symptoms: Type 1 and Type 2, depending on the stability of the patients maximum speed of expiration, or peak expiratory flow rate (PEFR). Type 1 is characterized by sustained, chronic variability of PEFR, while type 2 is distinguished by sudden unpredictable drops in PEFR where asthma symptoms are otherwise well controlled and the function of the lungs is not substantially impaired. Brittle asthma is one of the unstable subtypes of difficult asthma, a term used to characterize the less than 5% of asthma cases that do not respond to maximal inhaled treatment, including high doses of corticosteroids combined with additional therapies such as long-acting beta-2 agonists. The 2005 Oxford Textbook of Medicine distinguishes type 1 brittle asthma by persistent daily chaotic variability in peak flow (usually greater than 40 per cent diurnal variation in PEFR more than ...
A peak flow meter could actually save your life and ward off an asthma attack by allowing you to respond quickly to asthma flare-ups such as coughing, wheezing, and mucus production. These devices were created to help you manage your asthma, especially during physical activity. Peak flow meters measure daily variations in your breathing letting you know that your body has reached its limit by the number indicated on the meter. If the number is lower than your optimal amount, you should stop and rest, and/or take medication, depending on your doctors orders. Your doctor will also be able to tell whether your asthma medication is working based on the readings of the meter. Many people take daily asthma medication along with using their peak flow meter on a daily basis. Peak flow meters are hand-held and portable, and give you the confidence of being able to monitor your asthma symptoms before they start. The higher the number, the healthier you are, so you know that your asthma management plan is ...
Resolving the issue of accurate measurement of gas flow in the pipeline is one of the most important components of the effective management of gas enterprises. Invention of ultrasonic flow meters was a technological breakthrough. Currently this is one of the dynamically developing technology of gas flow metering in pipes. Flow meters effectively work under a pressure of 4 bar and more, measuring flows up to 40 m/sec in pipes from 75 to 1,500 mm in diameter; flow meters are applicable for fiscal and real time metering of natural, process gas and air flow rate. Flow meters can also be used for flow rate measurement of multiphase media (gas plus liquid phase) ensuring stable measurement in the presence of up 30% liquid phase and measuring its content within the accuracy of ~5%.. 1010 flow meters dont have moving parts and are absolutely not susceptible to the influence of gas flow. Flow meter testing time: 4 years.. We are producing 1, 2, 3 and 4 ray flow meters with high, enhanced and ultra-high ...
A peak flow meter is a simple device to measure how quickly you can move air out of your lungs. It can help you see if an attack is coming, sometimes even before any symptoms appear. Peak flow measurements can help show when medication is needed, or other action needs to be taken. Peak flow values of 50-80% of a specific persons best results are a sign of a moderate asthma attack, while values below 50% are a sign of a severe attack. Peak Flow Meters are used in conjunction with Asthma Action Plans, which is your personal plan for asthma management outlined by your doctor ...
The perception of breathlessness is a subject-related factor which is linked to respiratory disease, cardiac disease and overweight. We studied the distribution of breathlessness, its association with respiratory disease, cardiac disease and overweight, as well as its association with lung function, reversibility of airway obstruction (reversibility) and peak expiratory flow (PEF) variability in an elderly population. Data on breathlessness (rated with Borg scale), lung function, reversibility, PEF variability, respiratory symptoms, cardiac disease and overweight were collected in a random sample of 210 elderly (,55 yrs old) who participated in a physical fitness test. Individuals with a Borg score ,0 were taken to have breathlessness. Subjects with a Borg score ,0 (n=50, 24%) were three to five times more likely to have a low lung function and large reversibility than subjects with a Borg score of zero, independent of the presence of respiratory symptoms, cardiac disease or overweight, ...
When the mean PEF on workdays (starting with the first reading at work and continuing till the last reading before work on the next day, i.e. day interpreted)is compared with the mean PEF on days away from exposure, a difference of 16 litres/min is outside the 95% CI for readings taken in non-asthmatics exposed to high levels of a respiratory irritant (grain). Taking a mean rest-work PEF >16 litres/min achieved a sensitivity of 68% and specificity 95% in indeendently diagnosed occupational asthmatics and asthmatic controls. An increase in diurnal variation on workdays of >7% (the upper 95% CI for aasthmatic controils) had a sensitivity of only 27% for the diagnosis of OA. The difference between maximum PEF on workdays and minimum PEF on rest days (as reported in Cote J, Kennedy S, ChanYeung M , Quantitative Versus Qualitative Analysis Of Peak Expiratory Flow In Occupational Asthma, Thorax, 1993; 48:48-51) had a sensitivity of ...
TY - JOUR. T1 - A study of propensity for development of bronchial asthma in preadolescents with family history of asthma by spirometry and body mass index. AU - Bhattacharyya, S.. AU - Panchami, R.. AU - Ganaraja, B.. AU - Bhat Ramesh, M.. PY - 2012/1/1. Y1 - 2012/1/1. N2 - Hereditary occurrence of Bronchial asthma has been long been postulated and several studies gave useful information in support of this. Therefore family history of hypersensitivity and asthma is an important factor in the prediction, diagnosis, prevention and/or treatment of Asthma. We studied the young school children (10-11 years; n=150 in groups of 50 each) without any history of Bronchial asthma and those with history of bronchial asthma and those having parents with asthma, in three separate groups. The parameters studied were Forced Vital capacity (FVC), FEV1 (Timed vital capacity), FEV1/FVC Ratio, Peak Expiratory Flow Rate measurements and Correlated with BMI. Comparison of the parameters by ANOVA revealed that there ...
Asthma as a chronic health condition can be controlled when in addition to clinical care, adequate education and support is provided to enhance self-management. Like many other chronic health conditions improved self-management positively impacts the health-related quality of life (HRQoL). It can therefore be said that a well-structured pharmaceutical care delivery that addresses the issues related to patient education and support towards self-management stands a good chance of positively impacting asthma control. This study evaluated the impact of a structured pharmaceutical care delivery on asthma control. A prospective pre-/post- intervention study of a single cohort of 77 adult out-patients visiting specialist asthma clinics in Ghana were assessed for HRQoL and peak expiratory flow rates (PEFR) one month after pharmaceutical care intervention. Pharmaceutical care intervention covered education on the health condition, pharmacotherapy and self-management issues as well as correction of inhaler-use
Asthma represents a broad spectrum of clinical illness ranging from mild wheezing to severe broncho-constriction. It may present with a cough, a sensation of chest tightness or discomfort, dyspnea, or audible wheezing. When asking the patients history, remember to ask how frequently she uses asthma medication, whether she has limitations on activity or fatigues easily, what her exercise tolerance is, whether there are factors that exacerbate the asthma, and how complaint she is with medication. Acute exacerbation should also prompt you to ask about viral and respiratory infections. Physical examination of the pregnant asthmatic during an acute exacerbation should include assessment of respiratory effort and rate, perfusion status, a qualitative assessment of airflow, and signs of infection. Reversible broncho-constriction manifests itself with restriction of airflow in the large to medium bronchi, resulting in a decrease in peak expiratory flow rate (PEFR), measured with a hand-held peak flow ...
Guidelines recommend inhaled corticosteroids (ICS) for patients with severe chronic obstructive pulmonary disease (COPD). Most COPD patients are managed in primary care and receive ICS long-term and irrespective of severity. The effect of withdrawing ICS from COPD patients in primary care is unknown. In a pragmatic randomised, double-blind, placebo-controlled trial in 31 practices, 260 COPD patients stopped their usual ICS (median duration of use 8 years) and were allocated to 500 mcg fluticasone propionate twice daily (n = 128), or placebo (n = 132). Follow-up assessments took place at three monthly intervals for a year at the patients practice. Our primary outcome was COPD exacerbation frequency. Secondary outcomes were time to first COPD exacerbation, reported symptoms, peak expiratory flow rate and reliever inhaler use, and lung function and health related quality of life. In patients randomised to placebo, COPD exacerbation risk over one year was RR: 1.11 (CI: 0.91-1.36). Patients taking placebo
Guidelines recommend inhaled corticosteroids (ICS) for patients with severe chronic obstructive pulmonary disease (COPD). Most COPD patients are managed in primary care and receive ICS long-term and irrespective of severity. The effect of withdrawing ICS from COPD patients in primary care is unknown. In a pragmatic randomised, double-blind, placebo-controlled trial in 31 practices, 260 COPD patients stopped their usual ICS (median duration of use 8 years) and were allocated to 500 mcg fluticasone propionate twice daily (n = 128), or placebo (n = 132). Follow-up assessments took place at three monthly intervals for a year at the patients practice. Our primary outcome was COPD exacerbation frequency. Secondary outcomes were time to first COPD exacerbation, reported symptoms, peak expiratory flow rate and reliever inhaler use, and lung function and health related quality of life. In patients randomised to placebo, COPD exacerbation risk over one year was RR: 1.11 (CI: 0.91-1.36). Patients taking placebo
The peak expiratory flow rate is a measure of the breath when air soon resumes bronchus. Simple, easy and fast, this measure is necessary to follow the evolution of the disease and adapt the treatment. Regular measurements can also predict a crisis.. The dynamics of the breath is an essential parameter in asthma because the reduction of the calibre of the bronchi characterizing the asthma attack must be quantifiable right away. The comparative measurement of respiratory volumes as well as respiratory force in crisis and in normal times is therefore a necessity for monitoring and the adaptation of an asthma treatment.. ...
Twenty patients undergoing elective cholecystectomy were prospectively randomised to receive either intrapleural (bolus 20 ml followed by 10 ml/h) or thoracic epidural (bolus 9 ml followed by 5 ml/h) bupivacaine 0.5% for 8 h postoperatively to assess the effect of these two techniques on pain, pulmonary function and the surgical stress response. As assessed by the visual analogue scale (VAS), both groups received good but not total pain relief. Both groups had a 50% reduction in forced expiratory volume (FEV1), forced vital capacity (FVC) and peak expiratory flow rate (PEFR) after operation, and there was no observed effect on the stress response as measured by plasma glucose and cortisol. It is concluded that while both techniques provide good analgesia, the degree and extent of nerve blockade are not sufficient to affect the afferent neurogenic stimuli responsible for the observed effects on pulmonary function and the stress response ...
TY - JOUR. T1 - Quality of spirometry test performance in children and adolescents. T2 - Experience in a large field study. AU - Enright, P. L.. AU - Linn, W. S.. AU - Avol, E. L.. AU - Margolis, Helene G. AU - Gong H., Jr. AU - Peters, J. M.. PY - 2000. Y1 - 2000. N2 - Study objective: To determine the ability of children and adolescents to meet the American Thoracic Society (ATS) goals for spirometry quality that were based on results from adults. Design: Observational. Participants: More than 4,000 public school students, ages 9 to 18 years. Measurements: Spirometry was performed annually for 3 years, with the recording of maneuver quality measures of forced expiratory time, end-of-test volume, back-extrapolated volume, and time to peak expiratory flow (PEFT), and the recording of differences between best and second-best FVC, FEV1, and peak expiratory flow (PEF) values. Results: Regression analyses showed significant influences of participant age, gender, ethnicity, size, clinical status, and ...
We have assessed a new positive expiratory pressure device, the Flutter VRP1, in 20 patients with moderately severe asthma. Patients were studied for an initial 1-week run-in period, followed by 2 weeks of the flutter device in one of which the ball-bearing was removed from the bowl. Peak expiratory flow rates, salbutamol inhaler requirements and visual analogue scores were recorded daily. Ease of sputum expectoration showed a significant improvement after 6 days of the flutter device, but there were no differences in objective measurements of lung function nor in salbutamol use. The device may be a useful adjunct to asthma therapy.. ...
The Piusi K200 digital fuel flow meter is designed to measure the dispensing of diesel, lubrication oil, grease and anti-freeze at a maximum flow rate of 2.8lpm. This oval gear fuel flow meter combines high levels of accuracy with low pressure losses, and is compact in design and easy to install. The Piusi K200 electronic grease, diesel and oil flow meter is ideal for industrial applications where fluid delivery control is required. It can be installed in stationary systems on fluid transfer and distribution lines, and in mobile applications as an accessory for delivery valves and guns.. ...
http://www.marketsandmarkets.com/Market-Reports/intelligent-flow-meter-market-53333547.html. Early buyers will receive 10% customization on this report.. Inquiry Before Buying @ http://www.marketsandmarkets.com/Enquiry_Before_Buying.asp?id=53333547. The intelligent flow meter market incorporates measurement products used for measuring fluidic phenomenon in wide ranges of industrial applications. Intelligent flow meter is widely used in water & wastewater, oil & gas, food& beverage, chemicals, power generation, metals & mining, pulp & paper, pharmaceuticals & other. Global market for intelligent flow meter market is expected to reach $7098.79 million in 2020 at a CAGR of 5.72% calculated from 2014 to 2020.. The report segments the intelligent flow meter market on the basis of the different types, technology, applications and geographies. Further, it contains revenue forecasting and analyzes the trends in the market. The geographical analysis contains the in-depth classification of Americas, ...
Asthma (from the Greek άσθμα, sthma, panting) is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic ...
Asthma (from the Greek άσθμα, ásthma, panting) is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm.Symptoms include wheezing, coughing, chest tightness, and shortness of breath.Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1),and peak expiratory flow rate.Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic ...
TY - JOUR. T1 - The Prehospital Use of Albuterol Inhalation Treatments. AU - Vonderohe, Eric A.. AU - Jones, James H.. AU - McGrath, Roland B.. AU - Bell, Leon H.. PY - 1991/9. Y1 - 1991/9. N2 - The use of bronch odilators in the prehospital EMS setting is common. This study examined the safety of the administration of 2.5 mg albuterol using a hand-held nebulizer for the treatment of such patients. A total of 55 patients were included. Following treatment, peak expiratory flow rates (PEFR) increased a mean of 27 L/min, ventilatory rate decreased four breaths/min, heart rate decreased slightly, and systolic blood pressure increased 10 mmHg. Five of the 53 patients in whom cardiac rhythm was monitored, had premature ventricular complexes prior to treatment; only one did following therapy. Breath sounds improved in 61 % and were unchanged in 39%. Breathing was reported by the patient as improved in 51 of the 53 (93%) and only one felt worse. Adverse reactions were reported in 15 %, but none were ...
Asthma is thought to be caused by a combination of genetic and environmental factors. Its diagnosis is usually based on the pattern of symptoms, response to therapy over time, and spirometry. It is clinically classified according to the frequency of symptoms, forced expiratory volume in one second (FEV1), and peak expiratory flow rate.. ...
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your personal best, and how to set your peak flow zones....more ...
TY - CHAP. T1 - Current clinical diagnostic tests for asthma. AU - Shah, Shiwan. AU - Sharma, Gulshan. PY - 2014. Y1 - 2014. N2 - Asthma involves variable airflow obstruction in both large and small airways. The physiological consequences of obstruction include increased airway resistance and decreased expiratory flow rates, which lead to air trapping and dynamic hyperinflation. This chapter reviews current methods for pulmonary function testing to detect these physiological changes for both diagnosis and monitoring.. AB - Asthma involves variable airflow obstruction in both large and small airways. The physiological consequences of obstruction include increased airway resistance and decreased expiratory flow rates, which lead to air trapping and dynamic hyperinflation. This chapter reviews current methods for pulmonary function testing to detect these physiological changes for both diagnosis and monitoring.. KW - Airway hyperresponsiveness. KW - Bronchodilator reversibility. KW - ...
One systematic review (search date 2002, 22 crossover randomized controlled trials [RCTs] and eight parallel-group RCTs) examined regular versus as-required use of short-acting beta2-agonists in asthma control. Most studies did not allow concomitant use of inhaled corticosteroids, and only data from the crossover studies were suitable for pooling. The review found no difference in morning peak flow rates, but regular use improved evening peak flow rates, reduced diurnal variation, and reduced the need for reliever medication. However, the clinical relevance of these results is uncertain, because exacerbation rates, and quality-of-life scores did not differ and one RCT (n = 117) showed better symptom control over 24 hours with as-required use than with regular use. In some studies, regular use was associated with deterioration of airway responsiveness after stopping medication, increased allergen-induced bronchoconstriction, and tremor [Rodolfo et al, 2005 ...
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The 3418 combines the power of two interlocked 4-path British Gas design meters in one flow meter body. The second set of chords is the mirror image of the first, which allows the meter to cancel out the effects of swirl and cross flow. The 3418 Flow Meter boasts a 0.5 OIML accuracy class and requires only five diameters of straight run and no flow conditioner ...
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Our study shows that guided self management reduced by half or more the number of incidents caused by asthma when compared with traditional treatment. The difference became evident early during the follow up and increased during the study year. Patients with severe asthma were not included because most patients with severe asthma already have a peak flow meter and do practise some kind of self management. As a consequence hospital admissions were few in both study groups.. Antibiotics were used significantly more often in the traditional treatment group than in the self management group, suggesting that during exacerbations a false diagnosis of bacterial infection is easily made, leading to unnecessary use of antibiotics. Compared with viral infections, the role of bacterial infections is minimal in exacerbations of asthma.15 16 The early introduction of anti-inflammatory treatment during exacerbations in our self management group probably reduced useless antibiotic treatment.. The usefulness of ...
Asthma is a condition in which your airways narrow and swell and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.t could cause minimal symptoms to severe asthma attack requiring emergency care.. Asthma cant be cured, but its symptoms can be controlled. Because asthma often changes over time, its important that you work with your doctor to track your signs and symptoms and adjust treatment as needed. Your physician can do pulmonary function test or spirometry to evaluate lung function.. Usual treatment includes avoiding allergens which exacerbate symptoms, use of inhalers and oral medication. Peak flow meter is a small device you can keep at home to monitor lung function and seek help if there is asignificant decline in lung function.. ...
This type of medication is taken daily (even if you are not experiencing symptoms) and works to reduce your airway inflammation and mucus production. This makes your airways less sensitive to triggers and prevents asthma flare-ups before they happen. Not everyone with asthma needs a long-term control medication. Your healthcare provider will determine your asthma severity and whether you need one.. There are several different asthma medication delivery systems. If you take inhaled medicines, you should practice using your inhaler at your health care providers office. If you take long-term control medicines, take them daily as your health care provider prescribes. Your health care provider may also advise you to use a peak flow meter to measure and record how well your lungs are working.. Every time you use an inhaler, it is important to also use a spacer or holding chamber. This device helps get more medication into the lungs. RHA provides a free Monaghan Z Stat Anti-Static Valved Holding ...
Monitor your lung function. Check yourself for asthma symptoms. Watch for things like being short of breath, having chest tightness, coughing, and wheezing. Also notice if symptoms wake you up at night or if you get tired quickly when you exercise. If your doctor recommends it, measure your peak expiratory flow (PEF). A trigger may not always cause symptoms. But it can still narrow your bronchial tubes, which makes your lungs work harder. To identify triggers that do not always cause immediate symptoms, you can measure your PEF throughout the day. PEF will drop when your bronchial tubes narrow, so your PEF will drop when you are near things that trigger symptoms ...
One hundred five consecutive patients with mild or moderate asthma not earlier treated with inhaled corticosteroids and with a need of an inhaled bronchodilator of three or more doses a week, and/or asthma symptoms during day or night, and/or peak expiratory flow (PEF) or FEV1 less than 75% of predi …
Nocturnal asthma is a significant clinical problem that should be addressed aggressively. Peak-flow meters should be used to allow objective evaluation of symptoms and interventions. Sleep apnea, symp... more
Asthma controlling and management are the secret to living comfortably with the disease. If you understand how to identify early symptoms you can expect reliable asthma attack relief and preventing asthma. A essential device you must have for asthma control is a peak flow meter. It is a hand-held device that measures the rate at which you can discharge air from your …. Read More ...
2000 Indirect Assessment of Peak Expiratory Flow Rate in Healthy Indian Children. S. S. Verma, Y. K. Sharma, S. Arora, P. ... 1998 1999 Prediction of peak expiratory flow rate in healthy Indian boys and girls 8-13 years of age S. S. Verma, Y. K. Sharma ... 1992 Cold-induced vasodilation and peripheral blood flow under local cold stress in tropical men at Arctic S. S. Purkayastha, W ... 1977 Cold induced vasodilation and peripheral blood flow under local stress in man at altitude Lazar Mathew, S. S. Purkayastha ...
2003). "Heart rate variability biofeedback increases baroreflex gain and peak expiratory flow". Psychosomatic Medicine. 65 (5 ... The ECG method is more accurate than the PPG method in measuring heart rate variability. Biofeedback therapists use heart rate ... Rheoencephalography (REG), or brain blood flow biofeedback, is a biofeedback technique of a conscious control of blood flow. An ... Another rhythm in heart rate is caused by respiration (respiratory sinus arrhythmia), such that heart rate rises during ...
... and the peak expiratory flow rate (PMA may cause the PEF to be lowered in the premenstrual period). It is helpful in making a ... diagnosis to keep a diary of symptoms and peak expiratory flow (PEF) rates. Raynaud's disease: is a circulatory disorder in ... become narrower reducing blood flow. This causes the extremities to become numb and to be cooler than the core body temperature ...
... difference in peak expiratory flow rate on at least three days in a week for at least two weeks, a ≥20% improvement of peak ... decrease in peak flow following exposure to a trigger. Testing peak expiratory flow is more variable than spirometry, however, ... In a mild exacerbation the peak expiratory flow rate (PEFR) is ≥200 L/min, or ≥50% of the predicted best. Moderate is defined ... and peak expiratory flow rate. It may also be classified as atopic or non-atopic, where atopy refers to a predisposition toward ...
"Effects of ambient particulate matter on peak expiratory flow rates and respiratory symptoms of asthmatics during Asian dust ...
Measurement of airflow, such as peak expiratory flow rates, which can be done inexpensively on the track or sideline, may prove ... It might be expected that people with E.I.B. would present with shortness of breath, and/or an elevated respiratory rate and ... Similarly, examination may reveal wheezing and prolonged expiratory phase, or may be quite normal. Consequently, a potential ... compared to a national asthma rate of eight to ten percent, whilst a study by the United States Olympic Committee in 2000 found ...
Peak expiratory flow rate (PEFR) is a hand held device which measures how fast a person can exhale and is a reliable test for ... "Statement on self-monitoring of peak expiratory flows in the investigation of occupational asthma. Subcommittee on Occupational ... It involves measuring the forced expiratory volume in 1 second (FEV-1) of the patient before and after exposure to methacholine ...
The presence of expiratory phase wheezing signifies that the patient's peak expiratory flow rate is less than 50% of normal. ... Wheezes heard at the end of both expiratory and inspiratory phases usually signify the periodic opening of deflated alveoli, as ... Biphasic stridor (occurring during both the inspiratory and expiratory phases) indicates narrowing at the level of the glottis ... Bronchiolar disease usually causes wheezing that occurs in the expiratory phase of respiration. As a rule, extrathoracic airway ...
... or peak expiratory flow rate (PEFR). Type 1 is characterized by sustained, chronic variability of PEFR, while type 2 is ... The 2005 Oxford Textbook of Medicine distinguishes type 1 brittle asthma by "persistent daily chaotic variability in peak flow ...
... of asthma exacerbations that were associated with reduced peak expiratory flow rates and wheezing were due to viral upper ... resulting in a decrease in expiratory flow rates and an increase in airways hyper-responsiveness in non-asthmatic individuals. ... At 37 °C virus replication rate falls to 10% to 50% of optimum. This may be the major reason why rhinoviruses can replicate ... respiratory tract infections (URIs). High rates of asthma attacks due to rhinovirus infection are also found in adults. It ...
The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR), is a person's maximum speed of expiration, as ... Peak expiratory flow is typically measured in units of liters per minute (L/min). Peak flow readings are higher when patients ... It is important to use the same peak flow meter every time. To interpret the significance of peak expiratory flow measurements ... When peak flow is being monitored regularly, the results may be recorded on a peak flow chart. ...
... and the peak expiratory flow rate (PMA may cause the PEF to be lowered in the premenstrual period). It is helpful in making a ... A child using a peak flow meter (PFM) which measures how well air moves out ( the peak expiratory flow, or "PEF") of a person's ... diagnosis to keep a diary of symptoms and peak expiratory flow (PEF) rates.[17][18] ... The amount of asthma cases reported each year has gotten much higher between the 1960s and 2008[54][55][56] Rates of asthma ...
Peak flow meters are used to measure the peak expiratory flowrate, important in both monitoring and diagnosing asthma.[1] ... Respiratory rate ≥ 25 breaths per minute Heart rate ≥ 110 beats per minute ...
Maximal expiratory flow, another name for peak expiratory flow in spirometry Medial eye fields Metro Ethernet Forum Modernized ... e-File (MeF), an electronic system for filing U.S. income taxes Modified Energy Factor (Energy Star Rating Value, US Department ...
The peak expiratory flow can be measured at the bedside; in acute severe asthma the flow is less than 50% a person's normal or ... the respiratory rate may be elevated (more than 25 breaths per minute), and the heart rate may be rapid (110 beats per minute ... and also test using a peak expiratory flow and an oxygen saturation. Status asthmaticus can be misdiagnosed when wheezing ... Very severe acute asthma (termed "near-fatal" as there is an immediate risk to life) is characterised by a peak flow of less ...
... maximal midexpiratory flow rate MeSH E01.370.386.700.660.225.600 - peak expiratory flow rate MeSH E01.370.386.700.660.230 - ... forced expiratory flow rates MeSH E01.370.386.700.660.225.500 - maximal expiratory flow rate MeSH E01.370.386.700.660.225.505 ... maximal expiratory flow-volume curves MeSH E01.370.386.700.660.225.510 - ... blood flow velocity MeSH E01.370.370.140 - blood pressure determination MeSH E01.370.370.140.100 - blood pressure monitoring, ...
A peak expiratory flow (the maximum speed of expiration), commonly used in asthma, is not sufficient for the diagnosis of COPD ... If pulmonary rehabilitation improves mortality rates or hospital readmission rates is unclear. Pulmonary rehabilitation has ... diurnal variation in peak expiratory flow. "Higher" eosinophil count was chosen, rather than specifying a particular value as ... The rate at which COPD worsens varies with the presence of factors that predict a poor outcome, including severe airflow ...
Peak flowe meters are uised tae meisur the peak expiratory flow rate, important in baith monitorin an diagnosin asthma.[1]. ...
... maximal midexpiratory flow rate MeSH G09.772.765.650.300.790 - peak expiratory flow rate MeSH G09.772.765.650.430 - forced ... forced expiratory flow rates MeSH G09.772.765.650.300.590 - maximal expiratory flow rate MeSH G09.772.765.650.300.630 - maximal ... renal blood flow, effective MeSH G09.330.582.163.812.740 - renal plasma flow MeSH G09.330.582.163.812.750 - renal plasma flow, ... heart rate MeSH G09.330.553.400.509.430 - heart rate, fetal MeSH G09.330.553.400.515 - heart sounds MeSH G09.330.553.400. ...
A peak expiratory flow (the maximum speed of expiration), commonly used in asthma, is not sufficient for the diagnosis of COPD. ... If pulmonary rehabilitation improves mortality rates or hospital readmission rates is unclear.[109] Pulmonary rehabilitation ... diurnal variation in peak expiratory flow. "Higher" eosinophil count was chosen, rather than specifying a particular value as ... People who live in large cities have a higher rate of COPD compared to people who live in rural areas.[54] While urban air ...
... research studies conducted in Korea and Japan focused on respiratory function performance by measuring peak expiratory flow. ... The dust has been shown to increase the daily mortality rate in one affected region by 1.7%. Due to the concerning health ...
Peak/mean inspiratory and expiratory flow measures the presence of upper airway flow limitations during inspiration and ... Minute ventilation is equivalent to tidal volume multiplied by respiratory rate and is used to assess metabolic activity. Peak ... qDEEL quantitative difference of end expiratory lung volume is a change in the level of end expiratory lung volume and may be ... Respiratory rate is the number of breaths per minute. A non-specific measure of respiratory disorder. Tidal volume (Vt) is the ...
The bias flow controls and indicates the rate of continuous flow of humidified blended gas through the patient circuit. The ... through an adjustable expiratory valve. Small pressure oscillations delivered at a very high rate are superimposed by the ... The peak inspiratory pressure (PIP) window displays the average PIP. During startup a PIP sample is taken with every inhalation ... fresh gas flow (called bias flow), and FiO2. Increases in continuous lung-distending pressure and FiO2 will improve oxygenation ...
During general anesthesia, signs of bronchospasm include wheezing, high peak inspiratory pressures, increased intrinsic PEEP, ... decreased expiratory tidal volumes, and an upsloping capnograph (obstructive pattern). In severe cases, there may be complete ... decreases in airway results in significant flow impediments. Signs and symptoms: Wheezing Diminished breath sounds Prolonged ... manual ventilation The neurotransmitter acetylcholine is known to decrease sympathetic response by slowing the heart rate and ...
The peak of inspiratory vibration energy is higher than expiratory energy peak due to inspiration being more active process ... CS1 maint: discouraged parameter (link) Yosef M, Langer R, Lev S, Glickman YA (17 September 2009). "Effect of airflow rate on ... The technology is based on the physiologic vibration generated during the breathing process when flow of air distributing ... Following peak inspiration, there is centripetal regression of vibration energy toward the end of inspiration. The same pattern ...
The rate of ascent, altitude attained, amount of physical activity at high altitude, as well as individual susceptibility, are ... There is thought to be an increase in cerebral venous volume because of an increase in cerebral blood flow and hypocapnic ... and positive end-expiratory pressure. Altitude acclimatization is the process of adjusting to decreasing oxygen levels at ... acclimatizing before attempting to climb a high peak. Simulated altitude equipment such as altitude tents provide hypoxic ( ...
Expiratory time is defined as the period from the start of expiratory flow to the start of inspiratory flow. The flow-time ... Flow cycling is a form of patient cycling because the rate of flow decay to the cycle threshold is determined by patient ... The peak inspiratory pressure delivered by the ventilator is varied on a breath-to-breath basis to achieve a target tidal ... Inspiratory time is defined as the period from the start of positive flow to the start of negative flow. ...
Peak expiratory flow: The highest forced expiratory flow measured with a peak flow meter. ... a flow-volume loop, which graphically depicts the rate of airflow on the Y-axis and the total volume inspired or expired on the ... MMEF or MEF stands for maximal (mid-)expiratory flow and is the peak of expiratory flow as taken from the flow-volume curve and ... Forced expiratory flow (FEF)[edit]. Forced expiratory flow (FEF) is the flow (or speed) of air coming out of the lung during ...
... in blood flow were observed that were transient at low ventilation rates but sustained when both tidal volumes and rates were ... Positive end-expiratory pressure[edit]. Some devices have PEEP valve connectors, for better positive airway pressure ... An evaluation of peak inspiratory pressure, tidal volume, and ventilatory frequency during ventilation with a neonatal self- ... Consistent with previous studies where both excessive rate and volumes were found to produce side effects of blood flow ...
SIRS is the presence of two or more of the following: abnormal body temperature, heart rate, respiratory rate, or blood gas, ... High positive end expiratory pressure (PEEP) is recommended for moderate to severe ARDS in sepsis as it opens more lung units ... However, vasopressin reduces blood flow to the heart, finger/toes, and abdominal organs, resulting in a lack of oxygen supply ... Once daily dosing of aminoglycoside is sufficient to achieve peak plasma concentration for clinical response without kidney ...
... flow rate, waveform, and inspiratory/expiratory ratio. The volume-cycled ventilation includes the volume-control function and ... Pediatric bags have a valve that limits peak airway pressures to around 35-40 cm of water. Practitioners must tweak valve ... There is maintenance of a minimum respiratory rate. In the pressure support ventilation, the minimum rate is not set. Instead, ... In any airway management technique, tidal volume should be 6 to 8 cc/kg and ventilator rate should be 8 to 10 breaths/min. The ...
Measurement of airflow, such as peak expiratory flow rates, which can be done inexpensively on the track or sideline, may prove ... It might be expected that people with E.I.B. would present with shortness of breath, and/or an elevated respiratory rate and ... compared to a national asthma rate of eight to ten percent,[21] whilst a study by the United States Olympic Committee in 2000 ... examination may reveal wheezing and prolonged expiratory phase, or may be quite normal. Consequently, a potential for under- ...
The introduction of the non-return valve and high maximum gas supply flow rates have all but eliminated both these risks. In ... positive end-expiratory pressure and respiratory rate. There is no protocol guaranteed to avoid all risk in all applications.[ ... plateau pressure or peak airway pressure (PAP) may be the most effective predictor of risk, but there is no generally accepted ... High-flow oxygen up to 100% is considered appropriate for diving accidents. Large-bore venous access with isotonic fluid ...
SIRS is the presence of two or more of the following: abnormal body temperature, heart rate, respiratory rate, or blood gas, ... High positive end expiratory pressure (PEEP) is recommended for moderate to severe ARDS in sepsis as it opens more lung units ... However, vasopressin reduces blood flow to the heart, finger/toes, and abdominal organs, resulting in a lack of oxygen supply ... Once daily dosing of aminoglycoside is sufficient to achieve peak plasma concentration for clinical response without kidney ...
peak flow meter. nitrogen washout. Circulation. *pulmonary circulation. *hypoxic pulmonary vasoconstriction. *pulmonary shunt ... In particular, how much a person is able to exhale in one second (called forced expiratory volume (FEV1)) as a proportion of ... Parabronchi in which the air flow is unidirectional are called paleopulmonic parabronchi and are found in all birds. Some birds ... The size of the respiratory tract and the flow of air also protect the lungs from larger particles. Smaller particles deposit ...
SIRS is the presence of two or more of the following: abnormal body temperature, heart rate, respiratory rate, or blood gas, ... Severe sepsis is sepsis causing poor organ function or insufficient blood flow.[8] Insufficient blood flow may be evident by ... High positive end expiratory pressure (PEEP) is recommended for moderate to severe ARDS in sepsis as it opens more lung units ... Once daily dosing of aminoglycoside is sufficient to achieve peak plasma concentration for clinical response without kidney ...
Peak expiratory flow: The highest forced expiratory flow measured with a peak flow meter. ... volumes are essentially normal but flow rates are impeded. often low (Asthma can reduce the ratio to 0.6, Emphysema can reduce ... Forced expiratory flow related to some portion of the FVC curve; modifiers refer to amount of FVC already exhaled. ... The maximum instantaneous flow achieved during a FVC maneuver. FIF. Forced inspiratory flow: (Specific measurement of the ...
peak flow meter. nitrogen washout. Circulation. *pulmonary circulation. *hypoxic pulmonary vasoconstriction. *pulmonary shunt ... In particular, how much a person is able to exhale in one second (called forced expiratory volume (FEV1)) as a proportion of ... The walls of the alveoli are extremely thin allowing a fast rate of diffusion. The connective tissue of the lungs is made up of ... Parabronchi in which the air flow is unidirectional are called paleopulmonic parabronchi and are found in all birds. Some birds ...
Peak expiratory flow rate (PEFR) is a hand held device which measures how fast a person can exhale and is a reliable test for ... "Statement on self-monitoring of peak expiratory flows in the investigation of occupational asthma. Subcommittee on Occupational ... It involves measuring the forced expiratory volume in 1 second (FEV-1) of the patient before and after exposure to methacholine ...
Progesterone causes vasodilatation and increased blood flow to the kidneys, and as a result glomerular filtration rate (GFR) ... Peak glucose increases, and glucose concentration remains elevated for longer Adrenal Cortisol. ACTH infusion. Exaggerated ... This causes less space to be available for lung expansion in the chest cavity, and leads to a decrease in expiratory reserve ... Pregnant women fall at a similar rate (27%) to women over age of 70 years (28%). Most of the falls (64%) occur during the ...
... forced expiratory flow, and impaired lung function.[148] It is also thought that electronic cigarette use can expose ... The number of these calls seems to be trending downward after a peak of 4,023 calls for all ages in 2014. For 2018, the total ... As the usage of e-cigarettes increased between 2012 and 2015, the accidental nicotine exposure rate increased by 1398.2% in the ... Growth rates in the US and UK slowed in 2015, although use is still increasing.[48][49] ...
... rambling flow of thought and speech, tachycardia (increased heart rate) or cardiac arrythmia, periods of inexhaustibility, and ... Peak blood concentration is reached within 1-2 hours. It is eliminated by first-order kinetics. Caffeine can also be absorbed ... It appears that caffeine in low doses improves airway function in people with asthma, increasing forced expiratory volume (FEV1 ... which increases respiratory rate, reduces heart rate, and constricts blood vessels. Adenosine receptor antagonism also promotes ...
Much airborne disease research prior to the current pandemic has focused on 'violent' expiratory events like sneezing and ... Prentiss MG, Chu A, Berggren KK (23 October 2020). "Superspreading Events Without Superspreaders: Using High Attack Rate Events ... with little air flow. Other studies have suggested that the virus may be airborne as well, with aerosols potentially being able ... but research has indicated that the pharynx reaches peak viral load approximately four days after infection or the first week ...
Progesterone causes vasodilatation and increased blood flow to the kidneys, and as a result glomerular filtration rate (GFR) ... This causes less space to be available for lung expansion in the chest cavity, and leads to a decrease in expiratory reserve ... and peaks in the third trimester, usually to 30-50% above baseline. Estrogen mediates this rise in cardiac output by increasing ... Pregnant women fall at a similar rate (27%) to women over age of 70 years (28%). Most of the falls (64%) occur during the ...
It is commonly performed at home with a device called a peak flow monitor. ... The peak expiratory flow rate test measures how fast a person can exhale. ... What is a peak expiratory flow rate test?. The peak expiratory flow rate (PEFR) test measures how fast a person can exhale. The ... How do I prepare for a peak expiratory flow rate test?. The PEFR test does not need much preparation. You may want to loosen ...
Inspiratory peak flow showed certain advantages compared with expiratory peak flow measurements. The results can best be ... Rhinomanometry and nasal peak expiratory and inspiratory flow rate.. Wihl JA1, Malm L. ... Variation in nasal patency can be studied by rhinomanometry as well as by nasal expiratory and inspiratory peak flow rate. The ... Comparison between nasal expiratory and inspiratory peak flow was performed before and after provocation of 12 grass pollen- ...
Peak Expiratory Flow Rates in Healthy Turkish Children Living in Istanbul, Turkey ... simple instruments for measurements of the peak expiratory flow (PEF) rate are needed. The aim of this study was to determine ... with a Mini Wright peak flow meter. We entered height, age, and sex into the regression equation. The equation for prediction ...
"Peak Expiratory Flow Rate" by people in Harvard Catalyst Profiles by year, and whether "Peak Expiratory Flow Rate" was a major ... "Peak Expiratory Flow Rate" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical ... Below are the most recent publications written about "Peak Expiratory Flow Rate" by people in Profiles. ... Below are MeSH descriptors whose meaning is more general than "Peak Expiratory Flow Rate". ...
... peak expiratory flow rate PEFR explanation free. What is peak expiratory flow rate PEFR? Meaning of peak expiratory flow rate ... What does peak expiratory flow rate PEFR mean? ... Looking for online definition of peak expiratory flow rate PEFR ... peak expiratory flow rate (PEFR). (redirected from peak expiratory flow rate PEFR) peak expiratory flow rate (PEFR). the ... peak expiratory flow rate (PEFR). *peak expiratory flow rate PEFR. *Peak Expiratory Flow Rate/Forced Expiratory Volume in 1 ...
Peak expiratory flow rates before and after exercise in schoolchildren. Archives of Disease in Childhood 1974;49:923-926. ...
... for peak expiratory flow rates could be obtained from children over the age of 3 years using the low-range Wright Peak Flow ... Peak Expiratory Flow Rates in Children Under 5 Years of Age. Free ...
Comparison of peak expiratory flow rates applying European and Iranian equations to Palestinian students ... Comparison of peak expiratory flow rates applying European and Iranian equations to Palestinian students ... Peak expiratory flow rates in healthy Saudi Arabian children living in Riyadh. Annals of allergy, 1993, 71(5):446-50. ... Udupihille M. Peak expiratory flow rate in Sri Lankan schoolchildren of Sinhalese ethnic origin. Respiratory medicine, 1994, 88 ...
Zverev, Y. (2001) Prediction of Peak Expiratory Flow Rates in Stunted Children, CAJM vol 47, no. 3. (pp. 74-78) UZ, Avondale, ... Objective: To assess the effect of stunting on peak expiratory flow rates (PEFR) in Malawian children. Design: Cross sectional ... Conclusions: Stunting in Malawian children aged six to 14 years is associated with decreased rate of development of PEFR in ...
Journal of Clinical and Diagnostic Research aims to publish findings of doctors at grass root level and post graduate students, so that all unique medical experiences are recorded in literature.
Correlation of peak expiratory flow rate with body mass index in school children of a government school of Kathmandu Nepal A. ... Abstract: Background: Peak expiratory flow rate is a reliable data to assess the severity and effectiveness of management in ...
PEAK EXPIRATORY FLOW RATE MONITORING. Currently, there are several tests to evaluate aspects related to lung function. To ... Boaventura C, Amuy F, Franco J, Sgarbi M, Matos L, Matos L. Peak expiratory flow rate reference values in students. Arq Med ABC ... Boaventura C, Amuy F, Franco J, Sgarbi M, Matos L, Matos L. Peak expiratory flow rate reference values in students. Arq Med ABC ... We found a significant negative association between particulate matter and peak expiratory flow rate in this population, and ...
Maximal Expiratory Flow-Volume Curves* * Peak Expiratory Flow Rate* * Sensitivity and Specificity ... Methods: From maximum expiratory flow-volume (MEFV) curves, forced vital capacity, FEV(1), PEF, maximum expiratory flows (MEF) ... and peak expiratory flow (PEF). Objectives: To assess the sensitivity of other parameters after induced bronchoconstriction and ... Area under the maximum expiratory flow-volume curve--a sensitive parameter in the evaluation of airway patency Respiration. ...
Peak expiratory flow rate is the measurement of how much the patient can blow out of their lungs in one breath. It is a crude ... Peak Expiratory Flow Rate (PEFR) Technique. Foreword. Peak expiratory flow rate is the measurement of how much the patient can ... Peak Expiratory Flow Rate (PEFR) Technique. Updated. 26 May 2018. Length. 12 minutes. ... how to use a peak flow meter and your ability to communicate both of these areas to the patient. ...
Peak expiratory flow rate is the maximum rate of airflow that can be generated during forced expiratory manoeuvre starting from ... The aim of the study is to see the effect of body mass index on Peak Expiratory Flow Rate values in young adults. Materials and ... Effect of Body Mass Index (BMI) on Peak Expiratory Flow Rate in young adults ... Effect of Body Mass Index (BMI) on Peak Expiratory Flow Rate in young adults ...
Maximum expiratory pressure (MEP) and peak expiratory flow rate (PEFR) have been used as surrogate measures of cough and huff ... Maximal Expiratory Flow Rate. Middle Aged. Peak Expiratory Flow Rate. Posture / physiology*. Probability. Pulmonary Gas ... Maximum expiratory pressure (MEP) and peak expiratory flow rate (PEFR) have been used as surrogate measures of cough and huff ... Thus, to maximise the strength of expiratory manoeuvres during treatments that use the head down position, patients should be ...
DEF rate explanation free. What is DEF rate? Meaning of DEF rate medical term. What does DEF rate mean? ... Looking for online definition of DEF rate in the Medical Dictionary? ... See: maternal mortality rate; perinatal mortality rate. peak expiratory flow rate. The maximum rate of exhalation during a ... maximal expiratory flow rate (MEFR) maximal expiratory flow.. maximal midexpiratory flow rate (MMFR) maximal midexpiratory flow ...
Mean peak expiratory flow rate (PEFR) measurements over the course of the 1-yr study for: a) morning; and b) evening ... Peak expiratory flow rate. PEFR was higher in the tiotropium group relative to placebo for both morning and evening ... Each subject also performed peak expiratory flow rate (PEFR) measurements in their home twice daily (upon arising and at ... Fluticasone reduced the rate of deterioration compared with placebo-treated patients, but at no time (including the first year ...
Peak expiratory flow rate. Baseline morning and evening PEFRs for the tiotropium group (253±4.1 and 262±4.1 L·min−1, ... Peak expiratory flow rates (PEFRs) were self-measured by patients twice daily (upon arising and at bedtime) using a Mini-Wright ... Spirometric results, peak expiratory flow rate (PEFR), salbutamol use and effects on dyspnoea, health-related quality of life ... Screening forced expiratory volume in one second (FEV1) were 1.25±0.43 L (41.9±12.7% of the predicted value) (tiotropium) and ...
Liss GM and Tarlo SM, Peak expiratory flow rates in possible occupational asthma, Chest, 1991;100:63-69, ... Objective criteria for interpretation of peak expiratory flow rate readings were assessed in 50 patients evaluated for ... The sensitivity and specificity of serial peak flow measurements are high in the diagnosis of occupational asthma ... There is high level of agreement between expert interpretations of serial peak flow records. ...
Peak expiratory flow rate (PEFR) is a measure of the maximum speed of exhalation after a deep inspiration. The peak expiratory ... Correlation between peak expiratory flow rate and pectoralis muscle length. Authors: Subramanian, Visalakshi H.. ... Correlation between peak expiratory flow rate and pectoralis muscle length. International Journal of Research in Medical ... There is a significant correlation between peak expiratory flow and pectoralis muscle length. ...
Peak expiratory flow rate (PEFR): conclusion and recommendation. Author: Dr. Irani F. B., Dr. Shinde P. U. and Dr. Mulkhed, S. ... The normal peak expiratory flow rate (PEFR) is 400-600 L/min or 6-10 L/sec. PEFR increase in male till third decade and in ... Peak flow meter is the one of the simplest means of objectively assessing and monitoring the airway function. ... Peak flow meter helps to regularly monitor and in self management of asthma. ...
Related Posts of "Peak Expiratory Flow Chart Peak Expiratory Flow Rate Expiratory Peak Flow Rate". Sales Call Flow Chart. Flow ... Peak Expiratory Flow Chart Peak Expiratory Flow Rate Expiratory Peak Flow Rate. Flow Chart. June 14, 2019. ... Peak Expiratory Flow Chart Peak Expiratory Flow Rate Expiratory Peak Flow Rate and all other pictures, designs or photos on our ... if you looking for Peak Expiratory Flow Chart Peak Expiratory Flow Rate Expiratory Peak Flow Rate and you feel this is useful, ...
Recommendations for the management of asthma include teaching patients how to monitor their peak expiratory flow rate and ... If the peak flow rate was less than 50 percent, patients were instructed to start taking oral prednisone. If the peak flow rate ... 8(April 15, 1998) / Monitoring Peak Expiratory Flow Rates to Control Asthma ... The 48 patients in the third group were given an action plan based on their peak expiratory flow measurements. Each patient was ...
Results: There was a significant increase in post peak expiratory flow rate compared to pre peak expiratory flow rate. ... The pre and post peak expiratory flow rate were measured by peak expiratory flow meter. Statistical analysis was done using one ... Aim: This present study was done to determine the effect of abdominal muscle exercises on peak expiratory flow rate in obese ... Conclusion: This study showed that there is significant effect of abdominal muscle exercises on peak expiratory flow rate in ...
Diagnostics: Peak Expiratory Flow Rate (PEF) or FEV1 *May not be accurate in the emergency department. *Not required for ... See Peak Expiratory Flow Rate for predicted PEF (based on height, age, gender) ... Expect a 25% hospitalization rate of ED Asthma Exacerbation visits. *Relapse rate (bounce-back) is 7-15% after emergency ... Associated with a decreased rate of hospitalization for Asthma Exacerbation. *Used in pediatric emergency departments down to ...
Peak expiratory flow rate chart.When monitoring is recommended, it is usually done in addition to reviewing asthma symptoms and ... Peak expiratory flow rate chart. Peak Flow Chart Templates 2019-01-05. Peak expiratory flow rate chart Rating: 8,3/10 1490 ... Peak Expiratory Flow Predicted Values Calculator. Recording peak flow Peak flow measurements are most useful if they are ... Peak expiratory flow. Clearly, the Measurement section is not about how to measure the tool, but the peak flow itself. Here are ...
Peak expiratory flow rate. Treatment. Avoiding exposure to the substance that is causing your asthma is the best treatment. ...
PEFR peak expiratory flow rate, PNF primary non-function, DGF delayed graft function, GFR glomerular filtration rate, IPAQ-SF ... The peak expiratory flow rate (PEFR) will also be evaluated preoperatively and until discharge as an objective surrogate ... Postoperative pain will be assessed using the visual analog scale, rescue analgesic use, and peak expiratory flow rate. Length ... Study design flow chart. *Preoperative assessments including date of birth, gender, weight (kg), height (cm), and American ...
Peak expiratory flow rate. PEL. Permissible exposure limit. PHS. Public Health Service. ...
  • The peak expiratory flow rate (PEFR) test measures how fast a person can exhale. (healthline.com)
  • The PEFR test is also called peak flow. (healthline.com)
  • For the PEFR test to be useful, you must keep continuous records of your flow rate. (healthline.com)
  • You'll use a peak expiratory flow monitor to perform the PEFR test. (healthline.com)
  • ABSTRACT Measurement of peak expiratory flow rate (PEFR) is required for effective asthma treatment, but ethnic differences affect the application of prediction equations for lung function. (who.int)
  • Many reports have emphasized the importance of measuring peak expiratory flow rate (PEFR) in general practice to establish the diagnosis of asthma and for monitoring patients with asthma [2-5]. (who.int)
  • Objective: To assess the effect of stunting on peak expiratory flow rates (PEFR) in Malawian children. (ids.ac.uk)
  • Conclusions: Stunting in Malawian children aged six to 14 years is associated with decreased rate of development of PEFR in proportion to linear growth retardation. (ids.ac.uk)
  • Spirometric results, peak expiratory flow rate (PEFR), salbutamol use and effects on dyspnoea, health-related quality of life and COPD exacerbations were assessed in two identical 1-yr randomized double-blind double-dummy studies of tiotropium 18µg once daily (n=356) compared with ipratropium 40µg q.i.d. (n=179). (ersjournals.com)
  • Objective criteria for interpretation of peak expiratory flow rate readings were assessed in 50 patients evaluated for suspected occupational asthma who had at least two weeks of PEFR readings and an objective diagnosis based on other investigations. (occupationalasthma.com)
  • Background: Peak expiratory flow rate (PEFR) is a measure of the maximum speed of exhalation after a deep inspiration. (who.int)
  • The normal peak expiratory flow rate (PEFR) is 400-600 L/min or 6-10 L/sec. (journalcra.com)
  • Maximum expiratory pressure (MEP) and peak expiratory flow rate (PEFR) have been used as surrogate measures of cough and huff strength. (biomedsearch.com)
  • Changes in the peak expiratory flow rate (PEFR) before and after the HT/CL maneuver have not been evaluated among conscious volunteers who are regarded as a control cohort. (ceemjournal.org)
  • Measurement of peak expiratory flow rate ( PEFR ) in a follow-up examination for a chronic airway disease is useful because it has the advantages of being a simple measurement and can be repeated during examination. (bvsalud.org)
  • PEFR was measured using a Mini-Wright peak flow meter (Clement Clarke International Ltd. UK), and we conducted an analysis of factors that influence the change of PEFR and its average values. (bvsalud.org)
  • Current asthma protocols advocate the measurement of peak flow expiratory rate (PEFR) by staff in pre-hospital care in their assessment and management of acute asthma. (mendeley.com)
  • Background: Peak Expiratory Flow Rate (PEFR) is recommended as a tool for control of asthma. (caspjim.com)
  • For the determination of PEFR we used Mini Wright Peak Flow Meter. (caspjim.com)
  • The effect of Age, Weight, as determined by BMI and Nutritional Status, as determined by blood haemoglobin concentration, on Peak Expiratory Flow Rate (PEFR) in healthy volunteer medical students was determined in this study. (gavinpublishers.com)
  • Peak Expiratory Flow Rate (PEFR) as a parameter of pulmonary function can be easily measured conveniently with a Peak Flow Meter. (gavinpublishers.com)
  • Blood pressure was taken by Mercury Sphygmomanometer, PEFR was determine by Personal Best Full Range Peak Flow Meter (60-810 L/min), haemoglobin determined by Sahli's method and weight and height by standard weighing machine and stadiometer respectively. (gavinpublishers.com)
  • The Peak Expiratory Flow Rate (PEFR) is useful to screen and monitor the severity of asthma in children. (ijpediatrics.com)
  • In present study occupational exposure to cotton dust is examined by the standardized American Thoracic Society (ATS) questionnaire and a pulmonary function test, Peak Expiratory Flow Rate (PEFR) performed to make diagnosis amongst cotton operatives (ginners) and control group. (thefreedictionary.com)
  • Peak expiratory flow rates (PEFR) were also measured. (bmj.com)
  • and patients had a history of EIB or showed evidence of EIB (reduction of FEV 1 or peak expiratory flow rate [PEFR] ≥ 10%) in an exercise challenge before study entry. (acpjc.org)
  • Her peak expiratory flow rate (PEFR) reading is 285 liters per minute (L/min). (cdc.gov)
  • In this case, the individual's peak expiratory flow rate (PEFR) is measured, showing how fast a person can exhale. (wikipedia.org)
  • Peak Expiratory Flow Rate (PEFR) - the maximum flow achieved during an FVC manoeuvre. (personneltoday.com)
  • Consequently it is recommended for a patient to use the same flow meter throughout a study. (nih.gov)
  • In a cross-sectional study, we measured PEF in 2791 healthy schoolchildren (1468 boys and 1323 girls) aged 7-14 years, with a Mini Wright peak flow meter. (ingentaconnect.com)
  • Gaffin JM, Zhou JS, Cai Q, Petty CR, Fu C, Sheehan WJ, Baxi S, Bailey A, Gold DR, Phipatanakul W. Utility of a portable hand-held forced expiratory volume in 1 second meter for monitoring asthma in an inner-city school setting. (harvard.edu)
  • An initial trial on children between 2 years 4 months and 4 years 9 months showed that good reproducible results for peak expiratory flow rates could be obtained from children over the age of 3 years using the low-range Wright Peak Flow Meter. (bmj.com)
  • This station therefore tests several examination skills, firstly your knowledge of the underlying condition being monitored, how to use a peak flow meter and your ability to communicate both of these areas to the patient. (medistudents.com)
  • It is measured by using a standard Wright Peak Flow Meter or mini Wright Meter. (bvsalud.org)
  • The peak expiratory flow is measured by a device named peak flow meter. (who.int)
  • Peak flow meter is the one of the simplest means of objectively assessing and monitoring the airway function. (journalcra.com)
  • Peak flow meter helps to regularly monitor and in self management of asthma. (journalcra.com)
  • The pre and post peak expiratory flow rate were measured by peak expiratory flow meter. (who.int)
  • How do I use a peak flow meter? (connecthealthy.com)
  • There are different brands of peak flow meter. (connecthealthy.com)
  • I can frequently blow over 750 on a peak flow meter which is off the top off most devices and charts. (connecthealthy.com)
  • In addition, the peak flow meter needs to be cleaned periodically according to manufacturer instructions to maintain accuracy. (connecthealthy.com)
  • Peak flow best predicted hart pediatric rate meter paediatric. (virginiamayhew.com)
  • Ripple price forecast for investing haven predicted k expiratory flow rate chart meter bts. (virginiamayhew.com)
  • This is simlar to what is obtained when you blow into your peak flow meter, but more accurate and reliable. (healthcentral.com)
  • One peak flow meter was used for 25 children and mouthpiece was changed for each student. (ijpediatrics.com)
  • Reference values for peak expiratory flow in Indian adult population using a European union scale peak flow meter. (thefreedictionary.com)
  • The diagnostic is accomplished using five simple questions and a peak expiratory flow meter (PEF). (thefreedictionary.com)
  • What is normal peak flow meter reading in a person without asthma? (healthtap.com)
  • What is a normal peak flow meter result for 6yo girl at 45inches? (healthtap.com)
  • What is a normal peak flow meter reading for a 64yr old male patient with asthma? (healthtap.com)
  • 17 year old active male run 4/5 mi daily, ekg, echo, chest X-ray, blood work normal peak flow meter normal feel lack of air and chest pain for 3 months? (healthtap.com)
  • Normal peak flow meter test, normal CT of lung, normal chest xray, normal echo, normal pulse ox / blood pressure can this rule out interstitial lung d? (healthtap.com)
  • Your doctor may have you use a peak flow meter to track your symptoms. (familydoctor.org)
  • Peak expiratory flow is measured with a peak flow meter , an inexpensive device that can be used at home. (rexhealth.com)
  • It is measured in Litres per minute with a peak flow meter. (priory.com)
  • People with asthma may experience low peak flow rates before they develop breathing symptoms. (healthline.com)
  • In the evaluation and management of bronchial asthma, simple instruments for measurements of the peak expiratory flow (PEF) rate are needed. (ingentaconnect.com)
  • Abstract: Background: Peak expiratory flow rate is a reliable data to assess the severity and effectiveness of management in adolescent with asthma. (jkmc.com.np)
  • Recommendations for the management of asthma include teaching patients how to monitor their peak expiratory flow rate and adjust their medications accordingly. (aafp.org)
  • Cowie and associates performed a randomized, controlled trial to assess the effectiveness of an action plan based on peak expiratory flow measurements in preventing acute exacerbations of asthma. (aafp.org)
  • The authors conclude that an action plan based on peak flow measurements is associated with a significant reduction in the need for urgent treatment of asthma. (aafp.org)
  • The effect of a peak flow-based action plan in the prevention of exacerbations of asthma. (aafp.org)
  • Peak flow monitoring in patients with known asthma is useful in monitoring disease activity and response to pharmacologic intervention. (connecthealthy.com)
  • Flowcharts management of acute asthma exacerbations american family physician predicted ak flow chart rate female. (virginiamayhew.com)
  • A portable instrument that detects minute decreases in air flow, used by people with asthma to monitor small changes in breathing capacity. (thefreedictionary.com)
  • Subjects were randomized into three groups: a control group receiving no formal asthma education, a symptom group receiving asthma education based on asthma symptom severity, or PEF group receiving asthma education based on peak expiratory flows. (cdc.gov)
  • The Grampian asthma study of integrated care (known as GRASSIC after the Aberdeenshire novelist Lewis Grassic Gibbon) was designed to evaluate, in clinical, social, and economic terms, the effectiveness of integrated care, self monitoring of peak flow, and personalised, computer based education for asthma patients. (bmj.com)
  • Can one have an asthma attack with a normal peak flow reading equal to 90% or higher along with normal o2/PR level? (healthtap.com)
  • You may probably have VCD, Vocal Cord Dysfunction, a condition that mimics asthma , but peak flow readings would be normal, there are some other subtle clinical differences too. (healthtap.com)
  • display the peak expiratory flow rates in asthma patients over time. (gnu.org)
  • A decrease in the peak flow can show that the bronchial tubes have narrowed even before asthma symptoms develop. (rexhealth.com)
  • Asthma-related morbidity and mortality rates in pregnant women are comparable to those in the general population. (medscape.com)
  • The mortality rate from asthma in the United States is 2.1 persons per 100,000. (medscape.com)
  • Studies have indicated that low-birth-weight infants are more common in women with daily symptoms or low expiratory flow than in women without asthma. (medscape.com)
  • Spirometry variables, including forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), FEV1/FVC, peak expiratory flow rate (PEF), forced expiratory flow between 25% and 75% expired volume (FEF25-75), were recorded and interpreted. (thefreedictionary.com)
  • It involves testing with methacholine, after which the forced expiratory volume in 1 second (FEV1) of the patient is measured. (wikipedia.org)
  • FEV1% (or FEV1/FVC or FER, the forced expiratory ratio) - the FEV1 compared with the FVC and expressed as a percentage. (personneltoday.com)
  • Rhinomanometry and nasal peak expiratory and inspiratory flow rate. (nih.gov)
  • Both children have normal inspiratory flow volume loops. (connecthealthy.com)
  • The inspiratory flow volume loop should have the appearance of a semicircle. (connecthealthy.com)
  • While there are international standards for peak expiratory flow meters [20] there are none for peak inspiratory flow measurement. (thefreedictionary.com)
  • Chronic obstructive pulmonary disease (COPD) is characterized by reduced expiratory airflow and the symptoms of cough, sputum production and dyspnoea 1 . (ersjournals.com)
  • Upper abdominal surgeries also cause a decrease in peak expiratory flow rates, cough reflex due to pain limited inspiration. (elsevier.com)
  • He's tachypneic and afebrile and has a respiratory rate of 36 breaths/minute and has a nonproductive cough. (proprofs.com)
  • Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. (harvard.edu)
  • Peak expiratory flow rate is the measurement of how much the patient can blow out of their lungs in one breath. (medistudents.com)
  • Peak flow measurement is a quick test to measure air flowing out of the lungs. (connecthealthy.com)
  • Clearly, the Measurement section is not about how to measure the tool, but the peak flow itself. (connecthealthy.com)
  • Note which peak flow zone your measurement falls into. (connecthealthy.com)
  • What happens during peak flow measurement? (connecthealthy.com)
  • The advantage of this measurement is that it can be made with simple apparatus - where the subject blows against a paddle or propeller which records flow. (connecthealthy.com)
  • An increase in airway obstruction that can be quantified objectively by peak flow measurement or FEV₁ is typical in an acute exacerbation. (bmj.com)
  • Q. What's the difference between spirometry measurement and peak flow reading? (priory.com)
  • From maximum expiratory flow-volume (MEFV) curves, forced vital capacity, FEV(1), PEF, maximum expiratory flows (MEF) at 25, 50 and 75% of vital capacity and the area under the MEFV curve (A(ex)) were measured in two groups of asthmatic children after induced bronchoconstriction and bronchodilation, and in children with cystic fibrosis (CF) after bronchodilation. (nih.gov)
  • Peak flows were interpreted by two observers blinded to other results. (occupationalasthma.com)
  • Can I have normal PFTs and good peak flows with chronic bronchitis? (healthtap.com)
  • During these weeks, peak expiratory flows should be recorded at least twice daily. (rexhealth.com)
  • Exacerbations are marked by decreases from baseline in objective measures of pulmonary function, such as peak expiratory flow rate and forced expiratory volume in 1 second (FEV₁). (bmj.com)
  • Comparison between nasal expiratory and inspiratory peak flow was performed before and after provocation of 12 grass pollen-allergic patients. (nih.gov)
  • Azarbarzin A, Sands SA, Marques M, Genta PR, Taranto-Montemurro L, Messineo L, White DP, Wellman A. Palatal prolapse as a signature of expiratory flow limitation and inspiratory palatal collapse in patients with obstructive sleep apnoea. (harvard.edu)
  • Patients inhaled tiotropium 18 µg or placebo (mean screening forced expiratory volume in one second (FEV 1 ) 1.01 versus 0.99 L, 39.1 and 38.1% of the predicted value) once daily as a dry powder. (ersjournals.com)
  • The present report describes the combined results of this study and a second large multicentre 1-yr trial comparing the effect of tiotropium 18 µg once daily with that of ipratropium 40 µg q.i.d. on lung function, dyspnoea, exacerbation rate and health-related quality of life (HRQOL) in patients with COPD. (ersjournals.com)
  • Patients were required to have a clinical diagnosis of COPD, a forced expiratory volume in one second (FEV 1 ) of ⪕65% of the predicted normal value 7 and ⪕70% of forced vital capacity (FVC). (ersjournals.com)
  • The 48 patients in the third group were given an action plan based on their peak expiratory flow measurements. (aafp.org)
  • If the peak flow rate was less than 50 percent, patients were instructed to start taking oral prednisone. (aafp.org)
  • Thus, to maximise the strength of expiratory manoeuvres during treatments that use the head down position, patients should be encouraged to adopt a more upright position when coughing or huffing. (biomedsearch.com)
  • Aim: This study aimed to study the effect of thoracic epidural analgesia (TEA) on the peak expiratory flow rates in patients undergoing upper abdominal surgeries. (elsevier.com)
  • Patients' average peak expiratory flow rate was 462 L/min both before and after LABA withdrawal. (thefreedictionary.com)
  • 3 , 4 The reason for an age-related increase in surgical complications appears to correlate with an increased likelihood of underlying disease states in older persons, because studies have found that healthy elderly patients have surgical complication rates comparable to those of healthy younger patients. (aafp.org)
  • Patients may need to monitor their peak expiratory flow daily and should be aware of the warning signs of a severe attack. (bmj.com)
  • Each patient was given written instructions about peak flow readings at or below which each step in the action plan should be instituted. (aafp.org)
  • Peak flow readings are higher when we are well, and lower when the airways are constricted. (connecthealthy.com)
  • The range of normal peak flow readings is published on a chart, and doctors and nurses refer to the chart when they check your peak flow reading. (connecthealthy.com)
  • The large variability in peak expiratory flow rate is well known, so individual readings of peak expiratory flow are seldom used. (bmj.com)
  • Inspiratory peak flow showed certain advantages compared with expiratory peak flow measurements. (nih.gov)
  • This study evaluates the air pollution effects in children's and adolescents' lung function using peak expiratory flow (PEF) measurements over a given period, in an area exposed to industrial emissions. (scielosp.org)
  • In contrast, only five visits for urgent care were required by the group that followed an action plan based on peak flow measurements. (aafp.org)
  • To interpret the significance of peak expiratory flow measurements, a comparison is made to reference normal, predicted values based on measurements taken from the general population. (connecthealthy.com)
  • Recording peak flow Peak flow measurements are most useful if they are displayed on a chart or graph rather than just written down as a list. (connecthealthy.com)
  • We found a significant negative association between particulate matter and peak expiratory flow rate in this population, and these remained significant even after adjusted for temperature, humidity, body mass index, coughing, wheezing and coryza. (scielosp.org)
  • Participants were required to have at least a 10 pack-yr smoking history, clinically stable airway obstruction, and a forced expiratory volume in one second (FEV 1 ) of ≤65% of predicted normal values and ≤70% of forced vital capacity (FVC). (ersjournals.com)
  • Response (Symptoms and Peak Flow )? (fpnotebook.com)
  • It may be plotted out on charts together with a record of symptoms or using peak flow charting software. (connecthealthy.com)
  • Peak expiratory flow rate is the maximum rate of airflow that can be generated during forced expiratory manoeuvre starting from total lung capacity. (bvsalud.org)
  • This is the average forced expiratory flow rate at the middle part of the FVC manoeuvre. (priory.com)
  • In general terms the obstructive pattern presents itself as reduced flow rates and normal lung volumes (but with a reduced FEV 1 ) on the FVC manoeuvre. (priory.com)
  • The restrictive pattern usually presents itself as reduced volumes and normal flow rates on the FVC manoeuvre. (priory.com)
  • the highest flow rate at the mouth during a rapid forced expiration, starting with the lungs at full capacity. (thefreedictionary.com)
  • It measures the rate at which air is expelled from the lungs. (connecthealthy.com)
  • This is the fastest rate that you can force air out of your lungs. (rochester.edu)
  • Your peak flow drops when the tubes that carry air to the lungs (bronchial tubes) narrow. (rexhealth.com)
  • a) Expiratory Vital Capacity (EVC): The maximum volume of gas which can be expired from the lungs during a relaxed expiration from a position of full inspiration. (priory.com)
  • The expiratory phase is the one more commonly used to measure obstruction and restriction within the lungs. (priory.com)
  • Is the greatest flow that can be sustained for 10 milliseconds on forced expiration starting from full inflation of the lungs. (priory.com)
  • Spirometry is the assessment of the functioning of the lungs by measuring the flow rate and volume of air that is expelled after a deep inspiration. (personneltoday.com)
  • The cost-effectiveness of mini peak expiratory flow as a screening test for chronic obstructive pulmonary disease among the Bangkok elderly. (thefreedictionary.com)
  • Lung functions with spirometry: An Indian perspective-I. Peak expiratory flow rates. (ijpediatrics.com)
  • A person with Normal Spirometry will have lung volumes and flow rates within the normal range for people their age, sex and height. (priory.com)
  • A peak flow reading in the green zone indicates that the lung function management is under good control. (connecthealthy.com)
  • Peak expiratory flow rate variability declined in both groups, with no significant differences between them. (bmj.com)
  • Variation in nasal patency can be studied by rhinomanometry as well as by nasal expiratory and inspiratory peak flow rate. (nih.gov)
  • Twelve healthy subjects were also tested with rhinomanometry, nasal expiratory and inspiratory peak flow before and after decongestion with nose spray. (nih.gov)
  • The crude death rate is the ratio of the number of deaths in a geographic area in one year divided by the average population in the area during the year. (thefreedictionary.com)
  • The age-specific death rate is the ratio of the number of deaths occurring in a specified age group to the average population of that group. (thefreedictionary.com)
  • The cause-specific death rate is the ratio of the number of deaths due to a specified cause to the average total population. (thefreedictionary.com)
  • fetal death rate the ratio of the number of fetal deaths in one year to the total number of both live births and fetal deaths in that year. (thefreedictionary.com)
  • Peak expiratory flow (PEF) is the maximum flow generated during expiration performed with maximal force and starting after a full inspiration [1]. (who.int)
  • The effect of body position on maximal expiratory pressure and flow. (biomedsearch.com)
  • Maximal inspiratory (MIP) and expiratory (MEP) pressures, and expiratory peak flow rate (EPFR) values were assessed 1 day before surgery and on the fifth postoperative day. (medscimonit.com)
  • The most frequently used parameters for assessing bronchoconstriction and bronchodilation are forced expiratory volume in 1 s (FEV(1)) and peak expiratory flow (PEF). (nih.gov)
  • While the respiratory rate and vital capacity does not change in pregnancy, tidal volume, minute ventilation (40%), and minute oxygen uptake (20%) increase, with a resultant decrease in functional residual capacity and residual volume of air as a consequence of the elevated diaphragm. (medscape.com)
  • For this test, you will breathe into a mouthpiece connected to a spirometer machine that measures your breathing rates. (healthline.com)
  • Peak expiratory flow (PEF) measures how much air you or your child can breathe out using the greatest effort. (rexhealth.com)
  • Questionnaires were administered and peak expiratory flow rate was measured at baseline, 6 months and 12 months. (bmj.com)
  • attack rate in the analysis of acute outbreaks of disease, the proportion of persons who are exposed to the disease during the outbreak who do become ill. (thefreedictionary.com)
  • A peak flow chart monitors an asthmatic condition by tracking the maximum flow i. (connecthealthy.com)
  • This is the maximum flow that can be generated with a forced exhalation. (healthcentral.com)
  • Maximum forced expiratory flow rate as a measure of ventilatory capacity: With a description of a new portable instrument for measuring it. (ijpediatrics.com)
  • The aim of the study is to see the effect of body mass index on Peak Expiratory Flow Rate values in young adults. (bvsalud.org)
  • Pulse rate, respiratory rate, subjective assessment of respiratory distress, accessory muscle use, and auscultation of the lung fields are key factors to assess during physical exam. (bmj.com)
  • Peak expiratory flow rate was determined via standard peak expiratory flow rate device in both the groups after the inhalation of standard dose of salbutamol. (thefreedictionary.com)
  • Statistical differences in continuous abstinence rate (CAR) between the two groups were analyzed using chi-square tests. (dovepress.com)
  • Comparison of normal and asthmatic circadian rhythms in peak expiratory flow rate. (thefreedictionary.com)
  • Studies have shown that there is a decrease in the functional residual capacity and expiratory reserve volume in obese individuals. (who.int)
  • Elebute EA, Femipearse D. Peak flow rate in Nigeria: Anthropometric determinants and usefulness in assessment of ventilator function. (ijpediatrics.com)
  • basal metabolic rate an expression of the rate at which oxygen is utilized in a fasting subject at complete rest as a percentage of a value established as normal for such a subject. (thefreedictionary.com)
  • How do I know if my peak expiratory flow rate is normal? (healthline.com)
  • Appendix 3: Tables of normal peak flow values. (connecthealthy.com)
  • Normal values of peak expiratory flow rate in children from the town of Babol, Iran. (ijpediatrics.com)
  • Paramesh H. normal peak expiratory flow rate in urban and rural children. (ijpediatrics.com)
  • What is the normal peak expiratory flow rate of an typical adult? (healthtap.com)
  • What is a normal/average peak flow rate for a 5'3" 27yr old? (healthtap.com)
  • Is it normal for peak flow to be lower lying down? (healthtap.com)
  • Is a peak flow of 300 a reason to be concerned in a 58 year old 5 ft 7, normal weight? (healthtap.com)
  • You are just barely in the green assuming your normal peak flow is 370. (healthtap.com)
  • Peak expiratory flow rates are compared with charts that list normal values for sex, race, and height. (rexhealth.com)
  • Daily checks: visually check that the patent of the tubing and flow head look normal. (personneltoday.com)
  • The accuracy of 12 sets of peak flow meters was tested in a standardized way using a pump. (nih.gov)
  • Differences between flow meters were found. (nih.gov)
  • There are several types of peak flow meters available, and all of them work basically the same way: You blow a fast, hard breath into a mouthpiece and record the resulting score. (connecthealthy.com)
  • Calibration of peak expiratory flow meters? (connecthealthy.com)
  • The primary objective was to demonstrate non-inferiority of fluticasone/formoterol versus fluticasone/salmeterol, measured by pre-dose forced expiratory volume in the first second (FEV 1 ), at week 12. (springer.com)
  • Abdominal muscles are powerful expiratory muscles whose actions help to force the diaphragm back to its resting position. (who.int)
  • Aim: This present study was done to determine the effect of abdominal muscle exercises on peak expiratory flow rate in obese individuals. (who.int)
  • Methods: In this experimental study 30 obese subjects with decreased peak expiratory flow rate who fulfilled the inclusion and exclusion criteria having a Body mass index of more than 30kg/cm2 were selected for abdominal muscle exercise program for 4 weeks, 2 sets of each exercise, thrice a week for 10 repetitions for each set. (who.int)
  • Conclusion: This study showed that there is significant effect of abdominal muscle exercises on peak expiratory flow rate in obese individuals. (who.int)
  • The expiratory flow limitation is important determinant of breathlessness in obese individuals. (who.int)
  • Delayed graft function, primary non-function, serum creatinine levels, and glomerular filtration rate will also be assessed in the recipients after transplantation. (springer.com)
  • Brancazio, LR & Harirah, HM 2005, ' Effect of gestational age and position on peak expiratory flow rate: A longitudinal study [6] (multiple letters) ', Obstetrics and gynecology , vol. 106, no. 1, pp. 199-200. (utmb.edu)

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